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NYT reveals Big Oil's secret effort to roll back car emissions regulations

From Congress to Facebook ads, Marathon Petroleum used every trick

From Congress to Facebook ads, Marathon Petroleum used every trick.

EPA Creates Tool To Help Sell Used Cars

New tool generates MPG stickers similar to those on new cars

The EPA is featuring a new tool online to help sell used cars. The agency teamed up with the Energy Department to create a tool that will generate fuel economy information for used cars that mimics the ones required on all new cars.

American Drivers May Have Hit Their Peak

The "Peak Car" theory says U.S. citizens will buy fewer cars

Compared with the rest of the world, the U.S. has long been known as the gas guzzler country--the nation of the widest roads, largest vehicles and the least amount of reliable mass transit for the geography. That image could be changing, according to a new study that says driving in the U.S. has already peaked and will decline.

Small Cars Don't Always Deliver The Best Fuel Economy

A midsize sedan can offer better fuel economy as well as other benefits

A new study shows you don't have to sacrifice legroom for fuel economy.

Key To Better Fuel Efficiency May Lie In Carpools, Not Hybrids

New study says fuel efficiency of vehicles has improved more than efficiency of drivers

Cars on American roads have improved their fuel economy. The people who drive them? Not so much.

Hyundai And Kia Facing Lawsuits Over Exaggerated Fuel Economy Claims

Decision expected within a few weeks

After revealing they had exaggerated fuel-economy claims on approximately 900,000 vehicles in November, Hyundai and Kia rolled out a gift-card program to compensate customers for their extra gas expenses.

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Audi Working On Car That Will Get 282 Miles Per Gallon

Would be most fuel-efficient car on mass market

In the future, 2012 may be remembered as the year fuel economy rose to the forefront of the American auto industry.

Fuel Economy Of New Cars Reaches All-Time High In United States

6.1 billion gallons of gas have been saved in past 5 years

Fuel economy of new vehicles sold in the United States has reached an all-time high according to a University of Michigan study.

Investigation Reveals Hyundai And Kia Overstated Fuel Economy

Consumer complaints led EPA to audit Korean automakers

An investigation conducted by the U.S. Environmental Protection Agency revealed that Korean automakers Hyundai and Kia had overstated the fuel efficiency of several of their cars by as much as 6 miles per gallon.

How To Make Fuel Out Of Thin Air

A British company is doing just that

You know all about fuel-efficient alternatives to combat high gas prices. There are plug-in hybrids and electric cars, clean diesel and biodiesel. There's compressed natural gas and biomass and algae-based fuels. Now comes another development that makes those seem downright past their prime.

Ford C-Max Energi Plug-In Hybrid Reaches 100 MPGe

EPA rating puts vehicle ahead of key competitors

Ford is in the fast lane on the way to fuel efficiency. The EPA rated the company's C-Max Energi plug-in hybrid at 100 miles per gallon equivalent Thursday, making it the most fuel-efficient plug-in hybrid offered to Amercan consumers by the auto industry.

Ask The Car Coach: Talking Hot Cars and Bad Fuel Economy

The Car Coach answeres questions from AOL Autos readers and Facebook followers

Lauren Fix is the Car Coach. She answers reader mail and comments on our Facebook page.

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Electric Vehicles May Play Smaller Role In Helping Industry Reach 54.5 MPG Standard

Experts say other factors will improve fuel economy more than EVs

Automakers are examining every conceivable option as they stretch to make their cars meet 54.5 miles per gallon, per a government mandate, over the next 13 years. Surprisingly, electric vehicles might not play a prominent role in their plans.

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With 47 MPG Combined, Ford Fusion Claims Most Fuel-Efficient Sedan Title

EPA rating helps Fusion stand out in crowded segment

Last week, Toyota stole headlines from Ford when the Camry sedan eked past the F-150 pickup to claim best-selling vehicle honors halfway though 2012. Today, it's Ford's turn to win back plaudits.

Saturday Brings Key Deadline For Honda Civic Hybrid Owners Disappointed in Fuel Economy

After one woman's small-claims court success, number of individual lawsuits may rise

Since an improbable victory over Honda last week in a California small-claims court, a woman who sued over the disappointing fuel economy on her Civic hybrid says she has fielded hundreds of inquiries from disgruntled owners asking how they can follow in her footsteps.

Is Magnesium The Key To Higher Fuel Economy?

Carbon fiber often occupies the limelight as a light weight material that could take some of the heft out of our cars, and thus improve fuel efficiency -- if only it cost less. But alloys of magnesium, the lightest structural metal, have a history in automotive components tracing back to the 1930s. Now the U.S. government is hoping to jump-start innovative production of the material for use in cars.

Report: Next-gen boxer engine coming from Subaru this year

According to Automotive News, Subaru is set to release a new, more fuel-efficient version of its boxer four-cylinder engine. The powerplant should be available in both 2.0-liter and 2.5-liter configurations and will be able to offer up a 10-percent boost in fuel economy over its predecessors. The report doesn't detail exactly how the engine goes about gaining its new found efficiency, but it does say the changes are the first significan

Hyundai pledges to average minimum 50 MPG CAFE standards by 2025

2011 Hyundai Sonata Hybrid – Click above for high-res image gallery

China approves measly $442 incentive for fuel-efficient vehicles *UPDATE

The National Development and Reform Commission in China recently added 71 models from 16 different automakers to the approved list of vehicles that qualify for subsidies based on fuel efficiency alone. All of the qualifying vehicles are fitted with engines no larger than 1.6 liters and consume fuel at a rate of at least 20 percent below the average vehicle sold in China. Models such as the Hyundai i30 pictured ab

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