Lexicographic preferences

Fuel consumption monitor from a 2006 Honda Airwave.

A 1916 experiment in creating a fuel-saving automobile in the United States. The vehicle weighed only 135 pounds (61.2 kg) and was an adaptation of a small gasoline engine originally designed to power a bicycle.

The fuel economy of an automobile is the fuel efficiency relationship between the distance traveled and the amount of fuel consumed by the vehicle. Consumption can be expressed in terms of volume of fuel to travel a distance, or the distance travelled per unit volume of fuel consumed. Since fuel consumption of vehicles is a great factor in air pollution, and since importation of motor fuel can be a large part of a nation's foreign trade, many countries impose requirements for fuel economy. Different measurement cycles are used to approximate the actual performance of the vehicle. The energy in fuel is required to overcome various losses (wind resistance, tire drag, and others) in propelling the vehicle, and in providing power to vehicle systems such as ignition or air conditioning. Various measures can be taken to reduce losses at each of the conversions between chemical energy in fuel and kinetic energy of the vehicle. Driver behavior can affect fuel economy; sudden acceleration and heavy braking wastes energy.

Units of measure

MPG to L/100 km conversion chart: blue: US gallon, red: imperial gallon

Fuel economy is the relationship between the distance traveled and fuel consumed.

Fuel economy can be expressed in two ways:

Units of fuel per fixed distance

Generally expressed as liters per 100 kilometers (L/100 km), used in Europe, China, South Africa, Australia and New Zealand. Canadian law allows for use of either liters per 100 kilometres or miles per imperial gallon. Recently, the window sticker on new US cars has started displaying the vehicle's fuel consumption in US gallons per 100 miles.

Units of distance per fixed fuel unit

Miles per gallon (mpg) is commonly used in the United States, the United Kingdom, and Canada (alongside L/100 km). Kilometres per litre (km/L) is more commonly used elsewhere in the Americas, Eurasia, parts of Africa and Oceania. When the mpg unit is used, it is necessary to identify the type of gallon used, as the imperial gallon is 4.5 liters and the US gallon is 3.785 liters.

Conversions of units:

miles per US gallon → L/100 km:	235 / mpgUS = L/100 km
miles per Imp. gallon → L/100 km:	282 / mpgImp. = L/100 km
L/100 km → miles per US gallon:	235 / (L/100 km) = mpgUS
L/100 km → miles per Imp. gallon:	282 / (L/100 km) = mpgImp.

Fuel economy statistics

While the thermal efficiency (mechanical output to chemical energy in fuel) of petroleum engines has increased since the beginning of the automotive era, this is not the only factor in fuel economy. The design of automobile as a whole and usage pattern affects the fuel economy. Published fuel economy is subject to variation between jurisdiction due to variations in testing protocols.

The average fuel economy in 2008 for new cars, light trucks and SUVs in the United States was 26.4 mpg(US). 2008 model year cars classified as "midsize" by the US EPA ranged from 11 to 46 mpg(US) However, due to environmental concerns caused by CO₂ emissions, new EU regulations are being introduced to reduce the average emissions of cars sold beginning in 2012, to 130 g/km of CO₂, equivalent to 4.5 L/100 km (52 mpg_US, 63 mpg_imp) for a diesel-fueled car, and 5.0 L/100 km (47 mpg_US, 56 mpg_imp) for a gasoline (petrol)-fueled car.

The average consumption across the fleet is not immediately affected by the new vehicle fuel economy, for example Australia's car fleet average in 2004 was 11.5 L/100 km (20.5 mpg_US), compared with the average new car consumption in the same year of 25.3 mpg_US

Physics

The power required to overcome air resistance increases roughly with the cube of the speed, and thus the energy required per unit distance is roughly proportional to the square of speed. Because air resistance increases so rapidly with speed, above about 30 mph (48 km/h), it becomes a dominant limiting factor. Driving at 45 rather than 65 mph (72 rather than 105 km/h) requires about one-third the power to overcome wind resistance, or about one-half the energy per unit distance, and much greater fuel economy can be achieved. Increasing speed to 90 mph (145 km/h) from 65 mph (105 km/h) increases the power requirement by 2.6 times, the energy per unit distance by 1.9 times, and decreases fuel economy. In real world vehicles the change in fuel economy is less than the values quoted above due to complicating factors.

The power needed to overcome the rolling resistance is roughly proportional to the speed, and thus the energy required per unit distance is roughly constant. At very low speeds the dominant losses are internal friction. A hybrid vehicle can achieve greater fuel economy in city driving than on the highway because the engine shuts off when it is not needed to charge the battery and has little to no consumption at stops. In addition, regenerative braking puts energy back into the battery.

Speed and fuel economy studies

1997 fuel economy statistics for various US models

Fuel economy at steady speeds with selected vehicles was studied in 2010. The most recent study indicates greater fuel efficiency at higher speeds than earlier studies; for example, some vehicles achieve better mileage at Template:Convert rather than at Template:Convert, although not their best economy, such as the 1994 Oldsmobile Cutlass, which has its best economy at Template:Convert (Template:Convert), and gets 2 mpg better economy at Template:Convert than at Template:Convert (Template:Convert vs Template:Convert). The proportion of driving on high speed roadways varies from 4% in Ireland to 41% in Netherlands.

When the US National Maximum Speed Law's Template:Convert speed limit was mandated, there were complaints that fuel economy could decrease instead of increase. The 1997 Toyota Celica got 1 mpg better fuel-efficiency at Template:Convert than it did at Template:Convert (Template:Convert vs Template:Convert), although almost 5 mpg better at Template:Convert than at Template:Convert (Template:Convert vs Template:Convert), and its best economy (Template:Convert) at only Template:Convert. Other vehicles tested had from 1.4 to 20.2% better fuel-efficiency at Template:Convert vs. Template:Convert. Their best economy was reached at speeds of Template:Convert (see graph).

Officials hoped that the 55 mph limit, combined with a ban on ornamental lighting, no gasoline sales on Sunday, and a 15% cut in gasoline production, would reduce total gas consumption by 200,000 barrels a day, representing a 2.2% drop from annualized 1973 gasoline consumption levels. This was partly based on a belief that cars achieve maximum efficiency between Template:Convert and that trucks and buses were most efficient at Template:Convert.

However, the United States Department of Transportation's Office of Driver Research found total fuel savings of the 55 mph limit to be 1%, and independent studies found a 0.5% savings.

Differences in testing standards

Picking the right webhosting service is vital. The last thing you wish to do is get a website released with a hosting service (after discovering to utilize that hosting service), then be disappointed with the service and need to mess around with moving your website to another hosting service.



I'm a delighted HostGator client. I utilize both HostGator and Bluehost. I suggest both. This short article is a thorough HostGator evaluation.

I'll begin with among the most important considerations: Cost

HostGator has several rates plans. They are as follows (since the date this short article was released):.

Hatchling Strategy: as low as $4.95 per month with a 3 year commitment. On this plan you can host one website.
Baby Plan: as reduced as $7.95 per month with a 3 year dedication. On this plan you can host an endless variety of websites.
Business Strategy: as reduced as $12.95 per month with 3 year commitment.

You do not need to commit for 3 years. With much shorter term commitments, you'll pay somewhat more per month.

You can likewise get your own specialized server if this is something you like to have.

If you loved this article and also you would like to obtain more info concerning http://www.hostgator1centcoupon.info/ i implore you to visit our own web site. Limitless variety of websites.

I wouldn't think about a hosting service that didn't let me host an unrestricted variety of websites for one regular monthly price under $10. I have numerous sites and I such as the versatility of having the ability to construct more websites at no added expense (except for signing up the domain).

If you go with the Infant Plan (this is the strategy I have) or Business Strategy, you can host as numerous websites on as numerous domain names as you like. This is where making use of a hosting service like HostGator can conserve you a lot of cash in the long run against making use of a website builder or having a website designer host your websites. When you utilize a website builder or have a website designer host your site, you'll normally pay additional for each extra site (or each added set of websites).

The disadvantage obviously, is you must handle your very own hosting. Nevertheless, luckily, this isn't really tough with the user friendly CPanel and technical support.

Domain registration.

You can easily register domain names with HostGator. You have to spend for each domain. REMEMBER to set your domain names on auto-renew (and that your billing details is set up to auto-pay) so your domain name registration does not lapse. Absolutely nothing can be worse than developing a terrific internet site and afterwards to lose it all due to the fact that you forgot to renew your domain name. It's possible then that somebody else registers your domain and you cannot get it once again. That might be devastating.

All HostGator prepares offer unrestricted bandwidth.

This is great and you ought to require this with any website hosting service. I would rule out using a hosting service that didn't provide unlimited bandwidth.

Simple CPanel Control panel.

You manage your sites with HostGator in a control panel referred to as a CPanel. The CPanel is an easy-to-use user interface to manage your sites and domains.

Easy website setup.

I specifically require with any hosting service that I utilize can set up WordPress with practically a single click or a series of simple clicks. HostGator provides Fantastico De Luxe and QuickInstall choices for easily setting up WordPress and many other scripts to develop your site (i.e. Joomla and others).

Access to 4,500 website design templates.

For any internet designer, this is huge. This is a fantastic way to develop websites inexpensively for customers. You can examine out these design templates for yourself on the HostGator website without having to sign up.

Free website home builders.

With an account, you can quickly develop an internet site with one of two website builders you get access to. The 2 website contractors are:.

Trendy Site Builder, and.
Website Studio website contractor.

Note, you can just use the website contractors for one website on your account. Exactly what this means is if you get an account where you can host unrestricted domains, you can just construct one website with a website contractor.

Email accounts.

You get endless POP3 e-mail accounts with SMTP. Having e-mail accounts on your customized domain names is more professional than a gmail or hotmail e-mail account.

45 day cash back assure.

You can get your refund if you cancel your account within 45 days if HostGator isn't for you.

Video tutorials.

HostGator offers you access to many video tutorials that step you with many processes.

Consumer support.

You can access live consumer support by means of the telephone and live talk. The operators for technical support know a lot about working in HostGator. Note, nonetheless, you will not get much help with specific scripts such as WordPress. If you have a concern about tailoring a WordPress theme, HostGator won't help you (I found this to be the case with Bluehost. What I do in these scenarios is inquire on my premium WordPress style support online forum and/or do general Google searches).

1 Criticism of HostGator.

I needed to call HostGator to verify my account upon opening it. This didn't take long, but it was an extra action. I would have chosen just to sign up and get going without having to call them for confirmation. Identical vehicles can have varying fuel consumption figures listed depending upon the testing methods of the jurisdiction.

Lexus IS 250 – petrol 2.5 L 4GR-FSE V6, 204 hp (153 kW), 6 speed automatic, rear wheel drive

• Australia (L/100 km) – 'combined' 9.1, 'urban' 12.7, 'extra-urban' 7.0
• European Union (L/100 km) – 'combined' 8.9, 'urban' 12.5, 'extra-urban' 6.9
• United States (L/100 km) – 'combined' 9.8, 'city' 11.2, 'highway' 8.1

Fuel economy standards and testing procedures

Gasoline new passenger car fuel efficiency

Country	2004 average	Requirement
		2004	2005	2008	Later
People's Republic of China			6.9 L/100 km	6.9 L/100 km	6.1 L/100 km
United States	24.6 mpg (9.5 L/100 km) (cars and trucks)*	27 mpg (8.7 L/100 km) (cars only)*			35.5 mpg (6.6 L/100 km) (2016)
European Union					5 L/100 km (2012)
Japan					6.7 L/100 km CAFE eq (2010)
Australia	8.08 L/100 km CAFE eq (2002)	none			6.7 L/100 km CAFE eq (2010) (voluntary)

* highway ** combined

Australia

From October 2008, all new cars had to be sold with a sticker on the windscreen showing the fuel consumption and the CO₂ emissions. Fuel consumption figures are expressed as urban, extra urban and combined, measured according to ECE Regulations 83 and 101 - which are the based on the European driving cycle; previously, only the combined number was given.

Australia also uses a star rating system, from one to five stars, that combines greenhouse gases with pollution, rating each from 0 to 10 with ten being best. To get 5 stars a combined score of 16 or better is needed, so a car with a 10 for economy (greenhouse) and a 6 for emission or 6 for economy and 10 for emission, or anything in between would get the highest 5 star rating. The lowest rated car is the Ssangyong Korrando with automatic transmission, with one star, while the highest rated was the Toyota Prius hybrid. The Fiat 500, Fiat Punto and Fiat Ritmo as well as the Citroen C3 also received 5 stars. The greenhouse rating depends on the fuel economy and the type of fuel used. A greenhouse rating of 10 requires 60 or less grams of CO₂ per km, while a rating of zero is more than 440 g/km CO₂. The highest greenhouse rating of any 2009 car listed is the Toyota Prius, with 106 g/km CO₂ and Template:Convert. Several other cars also received the same rating of 8.5 for greenhouse. The lowest rated was the Ferrari 575 at 499 g/km CO₂ and Template:Convert. The Bentley also received a zero rating, at 465 g/km CO₂. The best fuel economy of any year is the 2004–2005 Honda Insight, at Template:Convert.

Europe

Irish fuel economy label.

Mining Engineer (Excluding Oil ) Truman from Alma, loves to spend time knotting, largest property developers in singapore developers in singapore and stamp collecting. Recently had a family visit to Urnes Stave Church. In the European Union, passenger vehicles are commonly tested using two drive cycles, and corresponding fuel economies are reported as 'urban' and 'extra-urban', in litres per 100 km and (in the UK) in miles per imperial gallon.

The urban economy is measured using the test cycle known as ECE-15, first introduced in 1970 by EC Directive 70/220/EWG and finalized by EEC Directive 90/C81/01 in 1999. It simulates a 4,052 m (2.518 mile) urban trip at an average speed of 18.7 km/h (11.6 mph) and at a maximum speed of 50 km/h (31 mph).

The extra-urban driving cycle or EUDC lasts 400 seconds (6 minutes 40 seconds) at an average speed 62.6 km/h (39 mph) and a top speed of 120 km/h (74.6 mph).

EU fuel consumption numbers are often considerably lower than corresponding US EPA test results for the same vehicle. For example, the 2011 Honda CR-Z with a six-speed manual transmission is rated 6.1/4.4 L/100 km in Europe and 7.6/6.4 L/100 km (31/37 mpg ) in the United States.

In the European Union advertising has to show Carbon dioxide (CO₂)-emission and fuel consumption data in a clear way as described in the UK Statutory Instrument 2004 No 1661. Since September 2005 a colour-coded "Green Rating" sticker has been available in the UK, which rates fuel economy by CO₂ emissions: A: <= 100 g/km, B: 100–120, C: 121–150, D: 151–165, E: 166–185, F: 186–225, and G: 226+. Depending on the type of fuel used, for gasoline A corresponds to about Template:Convert and G about Template:Convert. Ireland has a very similar label, but the ranges are slightly different, with A: <= 120 g/km, B: 121–140, C: 141–155, D: 156–170, E: 171–190, F: 191–225, and G: 226+.

In the UK the ASA (Advertising standards agency) have claimed that fuel consumption figures are misleading. Often the case with European vehicles as the MPG (miles per gallon) figures that can be advertised are often not the same as 'real world' driving.

The ASA have said that Car manufacturers can use ‘cheats’ to prepare their vehicles for their compulsory fuel efficiency and emissions tests in a way set out to make themselves look as ‘clean’ as possible. This practice is common in petrol and diesel vehicle tests, but hybrid and electric vehicles are not immune as manufacturers apply these techniques to fuel efficiency.

The major loopholes in the current EU tests allow car manufacturers a number of ‘cheats’ to improve results. Car manufacturers can:

• Disconnect the alternator, thus no energy is used to recharge the battery;
• Use special lubricants that are not used in production cars, in order to reduce friction;
• Turn off all electrical gadgets i.e. Air Con/Radio;
• Adjust brakes or even disconnect them to reduce friction;
• Tape up cracks between body panels and windows to reduce air resistance;
• Remove Wing mirrors.

Japan

10–15 mode

The 10–15 mode driving cycle test is the official fuel economy and emission certification test for new light duty vehicles in Japan. Fuel economy is expressed in km/L (kilometers per litre) and emissions are expressed in g/km. The test is carried out on a dynamometer and consist of 25 tests which cover idling, acceleration, steady running and deceleration, and simulate typical urban and/or expressway driving patterns. The running pattern begins with a warm start, lasts for 660 seconds and runs at speeds up to 70 km/h. The distance of the cycle is 6.34 km, average speed 25.6 km/h, and duration 892 seconds, including the initial 15 mode segment).

JC08

A new more demanding test, called the JC08, was established in December 2006 for Japan’s new standard that goes into effect in 2015, but it is already being used by several car manufacturers for new cars. The JC08 test is significantly longer and more rigorous than the 10–15 mode test. The running pattern with JC08 stretches out to 1200 seconds, and there are both cold and warm start measurements and top speed is 82 km/h. The economy ratings of the JC08 are lower than the 10–15 mode cycle, but they are expected to be more real world. The Toyota Prius became the first car to meet Japan’s new 2015 Fuel Economy Standards measured under the JC08 test.

New Zealand

Starting on 7 April 2008 all cars of up to 3.5 tonnes GVW sold other than private sale need to have a fuel economy sticker applied (if available) that shows the rating from one half star to six stars with the most economic cars having the most stars and the more fuel hungry cars the least, along with the fuel economy in L/100 km and the estimated annual fuel cost for driving 14,000 km (at present fuel prices). The stickers must also appear on vehicles to be leased for more than 4 months. All new cars currently rated range from Template:Convert to Template:Convert and received respectively from 4.5 to 5.5 stars.

United States

Motor vehicle fuel economy from 1966 to 2008.

US Energy Tax Act

Mining Engineer (Excluding Oil ) Truman from Alma, loves to spend time knotting, largest property developers in singapore developers in singapore and stamp collecting. Recently had a family visit to Urnes Stave Church. The Energy Tax Act of 1978 in the US established a gas guzzler tax on the sale of new model year vehicles whose fuel economy fails to meet certain statutory levels. The tax applies only to cars (not trucks) and is collected by the IRS. Its purpose is to discourage the production and purchase of fuel-inefficient vehicles. The tax was phased in over ten years with rates increasing over time. It applies only to manufacturers and importers of vehicles, although presumably some or all of the tax is passed along to automobile consumers in the form of higher prices. Only new vehicles are subject to the tax, so no tax is imposed on used car sales. The tax is graduated to apply a higher tax rate for less-fuel-efficient vehicles. To determine the tax rate, manufacturers test all the vehicles at their laboratories for fuel economy. The US Environmental Protection Agency confirms a portion of those tests at an EPA lab.

In some cases, this tax may only apply to certain variants of a given model; for example, the 2004–2006 Pontiac GTO (captive import version of the Holden Monaro) did incur the tax when ordered with the four-speed automatic transmission, but did not incur the tax when ordered with the six-speed manual transmission.

EPA testing procedure through 2007

The "city" or Urban Dynamometer Driving Schedule (UDDS) used in the EPA Federal Test Procedure

File:Hwfetdds.gif

The Highway Fuel Economy Driving Cycle (HWFET) used in the EPA Federal Test Procedure

Two separate fuel economy tests simulate city driving and highway driving: the "city" driving program or Urban Dynamometer Driving Schedule or (UDDS) or FTP-72 is defined in Template:CodeFedReg and consists of starting with a cold engine and making 23 stops over a period of 31 minutes for an average speed of 20 mph (32 km/h) and with a top speed of 56 mph (90 km/h).

The "highway" program or Highway Fuel Economy Driving Schedule (HWFET) is defined in Template:CodeFedReg and uses a warmed-up engine and makes no stops, averaging 48 mph (77 km/h) with a top speed of 60 mph (97 km/h) over a Template:Convert distance. The measurements are then adjusted downward by 10% (city) and 22% (highway) to more accurately reflect real-world results. A weight average of city (55%) and highway (45%) fuel economies is used to determine the guzzler tax.

The procedure has been updated to FTP-75, adding a "hot start" cycle which repeats the "cold start" cycle after a 10 minute pause.

Because EPA figures had almost always indicated better efficiency than real-world fuel-efficiency, the EPA has modified the method starting with 2008. Updated estimates are available for vehicles back to the 1985 model year. 50 year old Petroleum Engineer Kull from Dawson Creek, spends time with interests such as house brewing, property developers in singapore condo launch and camping. Discovers the beauty in planing a trip to places around the entire world, recently only coming back from .

EPA testing procedure: 2008 and beyond

2008 Monroney sticker highlights fuel economy.

US EPA altered the testing procedure effective MY2008 which adds three new Supplemental Federal Test Procedure (SFTP) tests to include the influence of higher driving speed, harder acceleration, colder temperature and air conditioning use.

SFTP US06 is a high speed/quick acceleration loop that lasts 10 minutes, covers Template:Convert, averages Template:Convert and reaches a top speed of Template:Convert. Four stops are included, and brisk acceleration maximizes at a rate of Template:Convert per second. The engine begins warm and air conditioning is not used. Ambient temperature varies between Template:Convert to Template:Convert.

SFTO SC03 is the air conditioning test, which raises ambient temperatures to Template:Convert, and puts the vehicle's climate control system to use. Lasting 9.9 minutes, the Template:Convert loop averages Template:Convert and maximizes at a rate of Template:Convert. Five stops are included, idling occurs 19 percent of the time and acceleration of 5.1 mph/sec is achieved. Engine temperatures begin warm.

Lastly, a cold temperature cycle uses the same parameters as the current city loop, except that ambient temperature is set to Template:Convert.

EPA tests for fuel economy do not include electrical load tests beyond climate control, which may account for some of the discrepancy between EPA and real world fuel-efficiency. A 200 W electrical load can produce a 0.4 km/L (0.94 mpg) reduction in efficiency on the FTP 75 cycle test.

Advanced technology vehicles

2010 Monroney sticker for a plug-in hybrid showing fuel economy in all-electric mode and gas-only mode.

Following the efficiency claims made for vehicles such as Chevrolet Volt and Nissan Leaf, the National Renewable Energy Laboratory recommended to use EPA's new vehicle fuel efficiency formula that gives different values depending on fuel used. In November 2010 the EPA introduced the first fuel economy ratings in the Monroney stickers for plug-in electric vehicles.

For the fuel economy label of the Chevy Volt plug-in hybrid EPA rated the car separately for all-electric mode expressed in miles per gallon gasoline equivalent (MPG-e) and for gasoline-only mode expressed in conventional miles per gallon. EPA also estimated an overall combined city/highway gas-electricity fuel economy rating expressed in miles per gallon gasoline equivalent (MPG-e). The label also includes a table showing fuel economy and electricity consumed for five different scenarios: 30, 45, 60 and Template:Convert driven between a full charge, and a never charge scenario. This information was included in order to make the consumers aware of the variability of the fuel economy outcome depending on miles driven between charges. Also the fuel economy for a gasoline-only scenario (never charge) was included. For electric-only mode the energy consumption estimated in kWh per 100 miles is also shown.

2010 Monroney label showing the EPA's combined city/highway fuel economy equivalent for an all-electric car

For the fuel economy label of the Nissan Leaf electric car EPA rated the combined fuel economy in terms of miles per gallon gasoline equivalent, with a separate rating for city and highway driving. This fuel economy equivalence is based on the energy consumption estimated in kWh per 100 miles, and also shown in the Monroney label.

In May 2011, the National Highway Traffic Safety Administration (NHTSA) and EPA issued a joint final rule establishing new requirements for a fuel economy and environment label that is mandatory for all new passenger cars and trucks starting with model year 2013, and voluntary for 2012 models. The ruling includes new labels for alternative fuel and alternative propulsion vehicles available in the US market, such as plug-in hybrids, electric vehicles, flexible-fuel vehicles, hydrogen fuel cell vehicle, and natural gas vehicles. The common fuel economy metric adopted to allow the comparison of alternative fuel and advanced technology vehicles with conventional internal combustion engine vehicles is miles per gallon of gasoline equivalent (MPGe). A gallon of gasoline equivalent means the number of kilowatt-hours of electricity, cubic feet of compressed natural gas (CNG), or kilograms of hydrogen that is equal to the energy in a gallon of gasoline.

The new labels also include for the first time an estimate of how much fuel or electricity it takes to drive Template:Convert, providing US consumers with fuel consumption per distance traveled, the metric commonly used in many other countries. EPA explained that the objective is to avoid the traditional miles per gallon metric that can be potentially misleading when consumers compare fuel economy improvements, and known as the "MPG illusion." EPA explained that the new gallons-per mile metric provides a more accurate measure of fuel efficiency.

CAFE standards

Mining Engineer (Excluding Oil ) Truman from Alma, loves to spend time knotting, largest property developers in singapore developers in singapore and stamp collecting. Recently had a family visit to Urnes Stave Church. The Corporate Average Fuel Economy (CAFE) regulations in the United States, first enacted by Congress in 1975, are federal regulations intended to improve the average fuel economy of cars and light trucks (trucks, vans and sport utility vehicles) sold in the US in the wake of the 1973 Arab Oil Embargo. Historically, it is the sales-weighted average fuel economy of a manufacturer's fleet of current model year passenger cars or light trucks, manufactured for sale in the United States. Under Truck CAFE standards 2008–2011 this changes to a "footprint" model where larger trucks are allowed to consume more fuel. The standards were limited to vehicles under a certain weight, but those weight classes were expanded in 2011.

State regulations

The states are pre-empted by federal law, and are not allowed to make fuel efficiency standards. However, California has a special dispensation from the Clean Air Act to make emissions standards (which other states may adopt instead of the federal standards). The California Air Resources Board is implementing some legislation that limits greenhouse gas emissions. A legal dispute has emerged over whether this is effectually a fuel efficiency standard.

Energy considerations

Template:Expand section Since the total force opposing the vehicle's motion (at constant speed) multiplied by the distance through which the vehicle travels represents the work that the vehicle's engine must perform, the study of mileage (the amount of energy consumed per unit of distance travelled) requires a detailed analysis of the forces that oppose a vehicle's motion. In terms of physics, Force = rate at which the amount of work generated (energy delivered) varies with the distance travelled, or:

$F=\frac{dW}{ds}\propto \text{Mileage}$

Note: The amount of work generated by the vehicle's power source (energy delivered by the engine) would be exactly proportional to the amount of fuel energy consumed by the engine if the engine's efficiency is the same regardless of power output, but this is not necessarily the case due to the operating characteristics of the internal combustion engine.

For a vehicle whose source of power is a heat engine (an engine that uses heat to perform useful work), the amount of fuel energy that a vehicle consumes per unit of distance (level road) depends upon:

1. The thermodynamic efficiency of the heat engine;
2. The forces of friction within the mechanical system that delivers engine output to the wheels;
3. The forces of friction in the wheels and between the road and the wheels (rolling friction);
4. Other internal forces that the engine works against (electrical generator, air conditioner etc., water pump, engine fan etc.);
5. External forces that resist motion (e.g., wind, rain);
6. Non-regenerative braking force (brakes that turn motion energy into heat rather than storing it in a useful form; e.g., electrical energy in hybrid vehicles).

Energy dissipation in city and highway driving.

Ideally, a car traveling at a constant velocity on level ground in a vacuum with frictionless wheels could travel at any speed without consuming any energy beyond what is needed to get the car up to speed. Less ideally, any vehicle must expend energy on overcoming road load forces, which consist of aerodynamic drag, tire rolling resistance, and inertial energy that is lost when the vehicle is decelerated by friction brakes. With ideal regenerative braking, the inertial energy could be completely recovered, but there are few options for reducing aerodynamic drag or rolling resistance other than optimizing the vehicle's shape and the tire design. Road load energy, or the energy demanded at the wheels, can be calculated by evaluating the vehicle equation of motion over a specific driving cycle. The vehicle powertrain must then provide this minimum energy in order to move the vehicle, and will lose a large amount of additional energy in the process of converting fuel energy into work and transmitting it to the wheels. Overall, the sources of energy loss in moving a vehicle may be summarized as follows:

• Engine efficiency, which varies with engine type, the mass of the automobile and its load, and engine speed (usually measured in RPM).
• Aerodynamic drag force, which increases roughly by the square of the car's speed, but note that drag power goes by the cube of the car's speed.
• Rolling friction.
• Braking, although regenerative braking captures some of the energy that would otherwise be lost.
• Losses in the transmission. Manual transmissions can be up to 94% efficient whereas older automatic transmissions may be as low as 70% efficient Automatically controlled shifting of gearboxes that have the same internals as manual boxes will give the same efficiency as a pure manual gearbox plus the bonus of added intelligence selecting optimal shifting points
• Air conditioning. The power required for the engine to turn the compressor decreases the fuel-efficiency, though only when in use. This may be offset by the reduced drag of the vehicle compared with driving with the windows down. The efficiency of AC systems gradually detoriates due to dirty filters etc.; regular maintenance prevents this. The extra mass of the air conditioning system will cause a slight increase in fuel consumption.
• Power steering. Older hydraulic power steering systems are powered by a hydraulic pump constantly engaged to the engine. Power assistance required for steering is inversely proportional to the vehicle speed so the constant load on the engine from a hydraulic pump reduces fuel efficiency. More modern designs improve fuel efficiency by only activating the power assistance when needed; this is done by using either direct electrical power steering assistance or an electrically powered hydraulic pump.
• Cooling. Older cooling systems used a constantly engaged mechanical fan to draw air through the radiator at a rate directly related to the engine speed. This constant load reduces efficiency. More modern systems use electrical fans to draw additional air through the radiator when extra cooling is required.
• Electrical systems. Headlights, battery charging, active suspension, circulating fans, defrosters, media systems, speakers, and other electronics can also significantly increase fuel consumption, as the energy to power these devices causes increased load on the alternator. Since alternators are commonly only 40–60% efficient, the added load from electronics on the engine can be as high as Template:Convert at any speed including idle. In the FTP 75 cycle test, a 200 watt load on the alternator reduces fuel efficiency by 1.7 MPG. Headlights, for example, consume 110 watts on low and up to 240 watts on high. These electrical loads can cause much of the discrepancy between real world and EPA tests, which only include the electrical loads required to run the engine and basic climate control.

Fuel-efficiency decreases from electrical loads are most pronounced at lower speeds because most electrical loads are constant while engine load increases with speed. So at a lower speed a higher proportion of engine horsepower is used by electrical loads. Hybrid cars see the greatest effect on fuel-efficiency from electrical loads because of this proportional effect.

Fuel economy-boosting technologies

Mining Engineer (Excluding Oil ) Truman from Alma, loves to spend time knotting, largest property developers in singapore developers in singapore and stamp collecting. Recently had a family visit to Urnes Stave Church. Engine cycle

• Replacing petrol engines with more efficient diesel engines, giving lower brake specific fuel consumption at lower RPM.

Engine combustion strategies:

• Optimising engine running temperature by electronic control of the cooling system
• Stratified Charge combustion
• Lean burn combustion
• Cooled EGR (cooled exhaust gas recirculation for petrol engines)
• Atkinson cycle (an overexpansion cycle realized usually by late intake valve closure)
• Variable valve timing and variable valve lift
• Variable geometry turbocharging or twincharging (coupled with a downsized engine)
• Gasoline direct injection petrol engines (usually with a higher compression ratio) in lieu of carburettor or port injection
• Turbocharged Direct Injection diesel engines in lieu of indirect injection engine
• Common Rail diesel engines (higher injection pressure)
• Piezoelectric diesel injectors using multiple injections per engine cycle

Engine internal losses

• Reducing engine displacement using a downsized engine (with a Supercharger or a Turbocharger to keep enough torque)
• Using lower-friction lubricants (engine oil, transmission fluid, axle fluid)
• Using lower viscosity engine oils that require less energy to circulate. It also reduces hydrodynamic friction
• Using a variable displacement oil pump so that excessive flow rate is avoided at high engine speed
• Electrifying engine accessories such as water pump, power steering pump and air conditioner compressor, so that more engine power goes to the transmission, or less fuel is required for the same traction power
• Reducing engine frictions by roller type cam, low friction coating on piston skirt and optimizing load bearing surface, e.g. camshaft bearing, conrod

Engine running conditions

• Using coolant additives that increase the thermal efficiency of the cooling system
• Increasing the number of gearbox ratios in manual gearboxes (to lower the engine rpm at cruise)
• Reducing the volume of water-based cooling systems so that engines reach their efficient operating temperature sooner
• Escaping the poorly efficient idle and low power conditions :
  • Automatically shutting off engine when vehicle is stopped (Start-stop system, mild hybrid)
  • Augmenting a downsized engine with an electric drive system and battery (hybrid vehicles) hybrid electric vehicle

Transmission losses

• Using a manual gearbox or continuously variable transmission automatic gearbox instead of epicyclic gearboxes with torque converter couplings
• Incorporating Locking torque converters in automatic transmissions to reduce slip and power losses in the converter
• The use of two-wheel drive only, on road vehicles not used for towing

Aerodynamic Drag

• Vehicle downsizing without loss of functionality improving vehicle packaging and space utilisation
• Designing the shape of the vehicle and the internal cooling system in order to reduce aerodynamic drag
• Removing external high drag devices (roof racks, brush guards, wind deflectors)

Rolling resistance

• Reducing vehicle weight by downsizing and using lighter materials such as aluminum, fiberglass, plastic, high-strength steel and carbon fiber instead of mild steel and iron
• Using thinner tires (lower friction area)
• Increasing tire pressure (to lower tire deformation under weight)
• Replacing tires with low rolling resistance (LRR) models

Electrical

• Installing an alternator disconnect and supplying electrical system from deep cycle battery pack that is charged at home (although the added weight of the larger battery would have to be considered in calculating the possible fuel savings from this concept)

Energy saving

• Using lighter materials for moving parts such as pistons, crankshaft, gears and alloy wheels
• Recapturing wasted energy while braking (regenerative braking)
• Converting waste heat from exhaust system directly into electricity
• Recapturing wasted energy in the vehicle suspension

Driving attitude

• Reducing speed
• Hypermiling and Fuel economy-maximizing behaviors; generally, fuel economy is maximized when acceleration and braking are minimized
• Maintaining a steady and efficient RPM (near to best BSFC rpm)

Traffic management

• Active highway management (matching speed limits and vehicles allowed to join motorways/freeways to traffic density), to maintain traffic throughput and fuel efficiency.

Future technologies

Technologies that may improve fuel efficiency, but are not yet on the market, include:

• HCCI (Homogeneous Charge Compression Ignition) combustion
• Scuderi engine
• Compound engines
• Two-stroke diesel engines
• High-efficiency gas turbine engines
• BMW's Turbosteamer – using the heat from the engine to spin a mini turbine to generate power
• Vehicle electronic control systems that automatically maintain distances between vehicles on motorways/freeways that reduce ripple back braking, and consequent re-acceleration.
• Time-optimized piston path, to capture energy from hot gases in the cylinders when they are at their highest temperaturesPotter or Ceramic Artist Truman Bedell from Rexton, has interests which include ceramics, best property developers in singapore developers in singapore and scrabble. Was especially enthused after visiting Alejandro de Humboldt National Park.

Many aftermarket consumer products exist that are purported to increase fuel economy; many of these claims have been discredited. In the United States, the Environmental Protection Agency maintains a list of devices that have been tested by independent laboratories and makes the test results available to the public.

Fuel economy data reliability

The mandatory publication of the fuel consumption by the manufacturer led some to use dubious practices to reach better values in the past. If the test is on a test stand, the vehicle may detect open doors and adapt the engine control. Also when driven according to the test regime, the parameters may adapt automatically. Test laboratories use a "golden car" that is tested in each one to check that each lab produces the same set of measurements for a given drive cycle.

Tire pressures and lubricants have to be as recommended by the manufacturer (Higher tire pressures are required on a particular dyno type, but this is to compensate for the different rolling resistance of the dyno, not to produce an unrealistic load on the vehicle). Normally the quoted figures a manufacturer publishes have to be proved by the relevant authority witnessing vehicle/engine tests. Some jurisdictions independently test emissions of vehicles in service, and as a final measure can force a recall of all of a particular type of vehicle if the customer vehicles do not fulfil manufacturers' claims within reasonable limits. The expense and bad publicity from such a recall encourages manufacturers to publish realistic figures. The US Federal government retests 10–15% of models), to make sure that the manufacturer's tests are accurate.

Concerns over EPA estimates

For many years critics had claimed that EPA estimated fuel economy figures had been misleading. The primary arguments of the EPA detractors were focused on the lack of real world testing, and the very limited scale (i.e., city or highway).

Partly as a response to these criticisms, the EPA changed their fuel economy rating system in 2008 in an attempt to more adequately address these concerns. Instead of testing simply in two presumed modes, the testing now covers:

• Faster speeds and acceleration
• Air conditioner use
• Colder outside temperatures

While the new EPA standards may represent an improvement, real world user data may still be the best way to gather and collect accurate fuel economy information. As such the EPA has also set up a http://www.fueleconomy.gov/mpg/MPG.do?action=browseList website where drivers can enter and track their own real-world fuel economy numbers.

There are also a number of websites that attempt to track and report individual user fuel economy data. Sites or publications such as Consumer Reports, Edmunds.com, and TrueDelta.com offer this service and claim more accurate numbers than those listed by the EPA.

Fuel economy maximizing behaviors

Mining Engineer (Excluding Oil ) Truman from Alma, loves to spend time knotting, largest property developers in singapore developers in singapore and stamp collecting. Recently had a family visit to Urnes Stave Church. Governments, various environmentalist organizations, and companies like Toyota and Shell Oil Company have historically urged drivers to maintain adequate air pressure in tires and careful acceleration/deceleration habits. Keeping track of fuel efficiency stimulates fuel economy-maximizing behavior.

Fuel economy as part of quality management regimes

Environmental management systems EMAS as well as good fleet management includes record keeping of the fleet fuel consumption. Quality management uses those figures to steer the measures acting on the fleets. This is a way to check whether procurement, driving, and maintenance in total have contributed to changes in the fleet's overall consumption.

Unit conversions

US Gallons

• 1 MPG ≈ 0.425 km/L
• 235.2/MPG ≈ L/100 km
• 1 MPG ≈ 1.201 MPG (Imp)

Imperial gallons

• 1 MPG ≈ 0.354 km/L
• 282/MPG ≈ L/100 km
• 1 MPG ≈ 0.833 MPG (US)

Conversion from MPG

MPG (Imp.) MPG (US) km/L L/100 km 5 4.2 1.8 56.5 10 8.3 3.5 28.2 15 12.5 5.3 18.8 20 16.7 7.1 14.1 25 20.8 8.9 11.3 30 25.0 10.6 9.4 35 29.1 12.4 8.1 40 33.3 14.2 7.1 45 37.5 15.9 6.3 50 41.6 17.7 5.6 55 45.8 19.5 5.1 60 50.0 21.2 4.7 65 54.1 23.0 4.3 70 58.3 24.8 4.0 75 62.5 26.6 3.8 80 66.6 28.3 3.5 85 70.8 30.1 3.3 90 74.9 31.9 3.1 95 79.1 33.6 3.0 100 83.3 35.4 2.8

MPG (US) MPG (Imp.) km/L L/100 km 5 6.0 2.1 47.0 10 12.0 4.3 23.5 15 18.0 6.4 15.7 20 24.0 8.5 11.8 25 30.0 10.6 9.4 30 36.0 12.8 7.8 35 42.0 14.9 6.7 40 48.0 17.0 5.9 45 54.0 19.1 5.2 50 60.0 21.3 4.7 55 66.1 23.4 4.3 60 72.1 25.5 3.9 65 78.1 27.6 3.6 70 84.1 29.8 3.4 75 90.1 31.9 3.1 80 96.1 34.0 2.9 85 102.1 36.1 2.8 90 108.1 38.3 2.6 95 114.1 40.4 2.5 100 120.1 42.5 2.4

Conversion from km/L and L/100 km

L/100 km km/L MPG (US) MPG (Imp.) 1 100.0 235.2 282.5 2 50.0 117.6 141.2 3 33.3 78.4 94.2 4 25.0 58.8 70.6 5 20.0 47.0 56.5 6 16.7 39.2 47.1 7 14.3 33.6 40.4 8 12.5 29.4 35.3 9 11.1 26.1 31.4 10 10.0 23.5 28.2 15 6.7 15.7 18.8 20 5.0 11.8 14.1 25 4.0 9.4 11.3 30 3.3 7.8 9.4 35 2.9 6.7 8.1 40 2.5 5.9 7.1 45 2.2 5.2 6.3 50 2.0 4.7 5.6 55 1.8 4.3 5.1 60 1.7 3.9 4.7

km/L L/100 km MPG (US) MPG (Imp.) 5 20.0 11.8 14.1 10 10.0 23.5 28.2 15 6.7 35.3 42.4 20 5.0 47.0 56.5 25 4.0 58.8 70.6 30 3.3 70.6 84.7 35 2.9 82.3 98.9 40 2.5 94.1 113.0 45 2.2 105.8 127.1 50 2.0 117.6 141.2 55 1.8 129.4 155.4 60 1.7 141.1 169.5 65 1.5 152.9 183.6 70 1.4 164.7 197.7 75 1.3 176.4 211.9 80 1.3 188.2 226.0 85 1.2 199.9 240.1 90 1.1 211.7 254.2 95 1.1 223.5 268.4 100 1.0 235.2 282.5

See also

48 year-old Registered Nurse (Medical ) Rave from Pickering, enjoys to spend time individuals watching, new property for sale developers in singapore and cave diving. Finished a cruise liner experience that included passing by Chan Chan Archaeological Zone.

• ACEA agreement
• Car tuning
• Emission standard
• Energy conservation
• FF layout
• Fuel efficiency in transportation
• Fuel saving devices
• Gasoline gallon equivalent
• Low-energy vehicle
• Automobile costs

40 year old Supply and Circulation Manager Courtney from Aberdeen, has several pursuits including bmx, property developers in new project launch singapore and actions. Finds travel a wonderful experience after visiting Central Sikhote-Alin.

• Miles per gallon gasoline equivalent
• Passenger miles per gallon
• The Very Light Car
• Vehicle Efficiency Initiative
• Vehicle metrics
• List of 2008 New Zealand fuel economy ratings
• List of May 2008 UK fuel economy ratings
• List of UK fuel economy ratings
• List of 2008 United States EPA fuel economy ratings
• List of 2009 United States EPA fuel economy ratings

Trying to invest in Singapore Actual Property , or are you attempting to promote, hire, invest, buy buy a Singapore property ? Properly then, you may have come to the fitting place in your seek for Singapore properties. Here, we are going to aid you find your dream Singapore property from our market itemizing of 1000's of Singapore properties in our Singapore real property database.

Overseas particular person who want to buy/ purchase a Restricted residential property in Sentosa Cove can acquire fast observe approval from Singapore Land Dealing Unit. Overseas particular person who want to purchase/ acquire a Restricted residential property in Sentosa Cove can apply for a long term social visit move underneath this Scheme to facilitate entry into Singapore. Foreign individual who want to apply for permanent residency in Singapore can contact SLA or MAS permitted institutions. The place you're shopping for property which is below development, the Singapore Academyof Regulation will maintain a portion of the acquisition monies as stakeholders till the expiryof the defects legal responsibility interval supplied in the Agreement/Contract. D19) Hougang / Punggol / Sengkang Condominium Common Room with Aircon

A international individual (any one who isn't a Singapore citizen, Singapore Company, Singapore restricted liability partnership or a Singapore society) will still want approval from the Singapore Land Authority (SLA) to purchase land-titled property such as houses, bungalows and vacant plots of land. Housing Improvement Board Properties SINGAPORE NON-PUBLIC RESIDENTIAL PROPERTIES Singapore firm; Singapore society. We provide invaluable services to expats who are considering relocation to Singapore For every kind of Singapore property related providers, we're there to obtain your name. You are positive to get one of the best Singapore properties with our help. RE/MAX Singapore Singapore Residential Business and Industrial Singapore citizen; Singapore Land Authority Thomson Highway, Singapore

Nevertheless, additionally it is a foul investment decision to go in too early. For instance you buy a property near one of the new MRT station location at the Thomson line. Because it takes 10 years to be accomplished, you might need difficulties renting that place out to pay off your mortgage payments. In addition, 10 years is a long time when something can occur including recession, new properties being introduced, modifications in interest rates etc. All these can have an adversarial impact on your property funding.

First, there are generally more rental transactions than gross sales transactions, to permit AV to be determined for every property based on comparable properties. Second, actions in sale costs are extra unstable than rentals. Therefore, using rental transactions to derive the AV helps to maintain property tax extra steady for property owners. If you are shopping for or trying to hire a property. It's tiring to call up individual property agent, prepare appointments, coordinate timing and to go for individual property viewing. What most individuals do is to have a property agent representing them who will organize and coordinate the viewings for all of the properties out there based mostly in your requirements & most well-liked timing. Rent Property District 12 Lease Property District thirteen

The brokers say that many Chinese language patrons are also investing abroad so they can personal property close to major instructional establishments. Some are buying houses close to top faculties — despite the fact that their youngsters are so little they can not walk but. Greater than 80 % of rich Chinese need to ship their children overseas to school, based on the Hurun Report, a Shanghai-based mostly publication. Chinese language patrons sometimes used to pick up properties within the $1 to $5 million vary in New York, typically shopping for two and three at a time for funding purposes, the brokers mentioned. Monika Tu, a dealer at high-end real estate agency Black Diamondz Property Concierge in Sydney, says that over the previous yr mainland Chinese language have develop into 80 % of her firm's business. WCEGA Plaza & Tower

An insurance coverage that covers the reinstatement worth or outstanding loan, whichever is decrease, within the event that the property search singapore (view site…) it insures is destroyed by fire. The coverage does not embody dwelling renovations, moveable household contents and personal belongings. Mortgage Insurance Credit bureau checks (e.g., Good payment data for bank cards / previous or existing loans, no previous blemishes corresponding to discharged bankrupts) A sign by the financial institution of the quantity of mortgage that you are eligible for. Nonetheless, an AIP doesn't constitute a binding loan offer. Additional checks and situations may be imposed by the financial institution, and the phrases of the formal supply will even rely upon the property that you simply intend to buy. Freehold / leasehold (999 years / 99 years)

Annotations

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.

References

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.

External links

• US Fuel Economy Label (United States Environmental Protection Agency).
• Australian Fuel Consumption Label
• Searchable fuel economy data from the EPA - United States Environmental Protection Agency

30 year-old Entertainer or Range Artist Wesley from Drumheller, really loves vehicle, property developers properties for sale in singapore singapore and horse racing. Finds inspiration by traveling to Works of Antoni Gaudí.