Mpg

Deutsche Umwelthilfe claims it tested emissions from some Opel cars and now has questions about the company's figures.

Consumer Reports says that if GM's 2016 model year SUVs have incorrect MPG numbers on their stickers, then the 2015 and 2014 SUVs are probably wrong, too.

GM says that a mistake was made in printing the MPG label for three of its SUVs, resulting in claimed numbers that were higher than is accurate.

By virtually doubling cylinder count, Ford wants drivers who shift themselves to save fuel by changing gears earlier.

When you spend a year in a bunch of cars, you can start to track facts and figures. In this episode, comparing real-world MPG with what the EPA says.

High-MPG trike maker Elio Motors says it can start testing prototype for ride, safety.

The EPA and CARB are requesting fuel economy info from Mitsubishi and want the company to do additional testing on some US models.

As they developed the Prius Prime, Toyota engineers took customer and driver feedback into account. 22 miles of EV range and 120 MPGe are the result.

The 2017 Chrysler Pacifica gets 28 mpg fuel economy highway, 18 mpg city, and 22 mpg combined, which puts it up at the top of current minivans.

New-vehicle fuel economy has stayed about the same for the past two years.

Autoline's John McElroy suggests how to fix fuel-economy and emissions issues in the United States.

New-vehicle fuel efficiency rose slightly last month as Americans bought fewer trucks and SUVs than in December.

Using a cradle-to-grave analysis, the ACEEE ranks over 1,000 make/model trim lines to find the greenest and meanest (to the environment) vehicles of 2016.

An overview of the upcoming CAFE efficiency regulations from the floor of the Detroit Auto Show 2016.

Gas prices could stay below $3 a gallon through the end of 2016. But then what?

FCA is still on the bottom of the fleetwide fuel economy scale, which is why it had to spend big money on emissions credits.

Mazda builds the most fuel-efficient cars, says a new federal report. Detroit's Big Three? When it comes to fuel savings, they have work to do.

The new cars we buy in the US are getting consistently worse fuel economy than just a few months ago.

Louisiana-based startup started putting out investment feelers in mid-June.

New York judge declines to throw the mpg-spurred case out.