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fuel efficiency
LATEST
Awesome chart shows you how far you can drive on empty.
Would Roads Be Safer and Greener Without Red Lights?
Never Inflate Your Car or Bike Tires Again—Soon, They'll Do It Themselves
How Car Companies Will Meet Obama's New Fuel Standards
As Gas Prices Hit a Record High This Weekend, How to Keep Fuel Costs Down
Check Out the Fuel Efficiency Stickers That Will Show Up on Every New Car
Saving Energy: Five Tips to Make Driving Less Bad
Video: Hybrids, Electric Cars, and Flywheels at the Detroit Auto Show
Two Steps Forward on Energy, One Sidestep for Show
Car Companies Unveil Prospective Electric Cars of the Future
The 15 Most Fuel-efficient Cars for 2010
Union of Concerned Scientists: Unimpressed with Your Hybrid
Is a Plane More Fuel Efficient Than a Prius?
Ridin' Dirty
Gas Loss
Gas Attack