Vehicle fuel economy down, emissions up

Gas mileage of new vehicles sold in the U.S. slipped last month, according to researchers at the University of Michigan Transportation Research Institute.

Five properties of physics that affect your gas mileage

Physics is inescapable. It's everywhere, making your Frisbees fly, your toilets flush and your pasta water boil at a lower temperature at altitude. We've harnessed these forces, along with chemistry and engineering, to build ...

Fuel economy of vehicles sold last year at record-high

Gas mileage of new vehicles sold in the U.S. was 24.8 mpg in December, the same as the average for all of 2013—the best annual mark ever, say researchers at the University of Michigan Transportation Research Institute.

US cars and trucks hit record gas mileage in 2012

New cars and trucks sold in the U.S. last year got an average of 23.6 miles per gallon (10 liters per 100 kilometers) in combined city and highway driving, a record that came mainly through improvements to engines and transmissions, ...

Fuel economy up 23 percent since 2007

Gas mileage of new vehicles sold in the U.S. was 24.8 mpg in November, up 0.1 mpg from the revised October figure, say researchers at the University of Michigan Transportation Research Institute.

Vehicle fuel economy up in October

Gas mileage of new vehicles sold in the U.S. rose 0.2 mpg last month, say researchers at the University of Michigan Transportation Research Institute.

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