The Car and Truck Fleet and Leasing Management Magazine

EPA Proposes More Road Testing for MPG Rating

July 21, 2014

Photo via Wikipedia.
Photo via Wikipedia.

The Environmental Protection Agency will recommend that automakers be required to perform additional road testing to confirm the fuel-economy claims posted on their vehicles, rather than relying on laboratory measurements.

The Wall Street Journal reported last week that the EPA proposal comes after recent cases where some mileage estimates from Ford Motor Co., Hyundai Motor Co., and Kia Motors Co. turned out to be overstated.

The EPA wants automakers to measure vehicles’ air resistance and rolling friction on a test track rather than rely on computer modeling, according to the Journal.

Chris Grundler, director of the EPA's Office of Transportation and Air Quality, told the Journal that some companies already do this kind of testing, "but we are establishing a regulatory requirement for all automakers."

Changes made to the testing in 2008 have helped make the numbers more closely align with what consumers can expect, but there are still some inconsistencies, the Journal said. Its own analysis has found that hybrids tend to underperform lab results while diesel engines often do much better than their posted numbers.

AAA issued a statement lauding the EPA proposal.

“For most Americans, a new vehicle is the second largest investment they will make and it's imperative they have accurate information to inform their purchase,” the statement says. “While reports show that many consumers actually experience better fuel economy than promised, it is important for the ratings to be as accurate as possible and not overstate real-world performance.”

Before the EPA can take action on the proposal, a public comment period is required.


Ford Restates Fuel Ratings for Six Vehicles

Twitter Facebook Google+


Please note that comments may be moderated. 
Leave this field empty:

Fleet Incentives

Determine the actual cost of owning and running a vehicle in your fleet. Compare vehicles by class and model.

Sponsored by

Lexus is a luxury vehicle marque established in the early 1980s and launched in 1989. Lexus belongs to the global Toyota family.

Read more

Fuel Saving Strategies Survey

View our 2008 survey to benchmark your fleet's fuel and green strategies with other fleets.

Fuel Calculator

A managed fuel program can help you save time and money and gain control over the way you fuel your vehicles. Determine your potential savings by using our fuel calculator.
Launch Fuel Calculator 

Fuel Prices

U.S. Gasoline and Diesel Fuel Prices.

Launch Fuel Prices 

Up Next

More From The World's Largest Fleet Publisher