epa mpg

Yikes. The EPA has finally released its official fuel economy rating for the Fisker Karma, and it's not high: just 52 MPGe, an all-electric range of 32 miles and 20 miles per gallon on gasoline when the battery runs dry. This is well below the numbers that Fisker reps were bandying about in past ...

After yesterday's 99 miles per gallon (equivalent) EPA rating for the Nissan Leaf, General Motors had to be eager to get the numbers for the Chevy Volt from the government – if for no other reason than because these efficiency stickers are the last thing holding up deliveries of the first ...

As far as we know, the first production Chevrolet Volt models are still awaiting their official EPA stickers. Nissan, though, has received the details on what the government agency has rated its all-electric Leaf at, and it looks good: a combined rating of 99 miles per gallon (equivalent) which ...

As expected, the EPA has released its first-ever proposal for greenhouse gas and fuel efficiency standards for heavy-duty vehicles. The proposal, and that's all it is at this point, would create three new categories for heavy trucks: combination tractors, heavy-duty pickups and vans, and ...

The EPA is aware that range-extended electric vehicles can game the current fuel economy test to deliver mileage estimates way up in the stratosphere. It makes for impressive advertising, like General Motors' touting of the Chevrolet Volt's estimated 230 mpg, but the EPA wants to give a more ...

The Chevrolet Volt's 230 mpg number continues to be questioned. The latest to criticize is Bill Ford, who takes issue not only with the General Motors-approved 230 figure, but also Nissan's claim that its Leaf EV will get 367 mpg. The real culprit here, Ford said, is the EPA's methodology, which ...

Apparently, we're not the only ones trying to figure out the exact methodology that was used to determine the supposed 230 mile per gallon city rating claimed by General Motors for the upcoming Chevy Volt. In response to a query from the ...

Ford is making an interesting habit of giving low-ball estimates regarding the mileage of their new vehicles, only to later announce final EPA numbers that are higher by several miles per gallon. This happened with the Fusion Hybrid ...