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The Energy Department is harnessing the innovation of the racing world to improve the efficiency of vehicles -- both on and off the track.

Check out our brand new infographic on how the National Clean Fleets Partners are significantly reducing their petroleum use.

Representing more than a million vehicles nationwide, National Clean Fleets Partnership are reducing their vehicle's petroleum use.

Learn how Clean Fleets corporate partners such as Best Buy and PG&E are committing to reducing their petroleum use.

The National Clean Fleets Partnership helps large fleets reduce their petroleum use. Secretary Chu today announced four new members of the partnership at the Green Truck Summit in Indianapolis, bringing the total partnership to 18 corporate members, who operate more than a million vehicles nationwide.

With so many options, it can be hard to decipher what car is right for you, or if there’s a clear economic benefit in trading up to a new vehicle. Fortunately, the Energy Department offers a number of tools that can help consumers save money and fuel, whether you’re in the market for a new vehicle or trying to make the most of your current one.

When most people go to the car dealership, they take a hard look at the vehicle’s window sticker. But that initial price doesn’t tell the whole story.

Many great technology stories have started with just one humble computer and a desk. Twenty years ago this month, the Department of Energy’s Alternative Fuels and Advanced Vehicles Data Center (AFDC) started just this way at the National Renewable Energy Laboratory (NREL).

The Green Racing program, a motorsports competition geared toward raising awareness of fuel efficiency, alternative fuels and advanced vehicle technologies, recently hit a major milestone as the state of Wisconsin played host to the 25th race in the Michelin Green X Challenge.

Read about a great example of how state and local governments can learn from each other – and how a very simple policy change can produce huge benefits for the country, helping us all save money by saving energy.

Dr. David Greene, a fuel economy expert from Oak Ridge National Lab, offers up tips that can help you save over 30% on gas this summer.

Assistant Secretary David Sandalow documents his experiences at the inaugural Clean Cities Stakeholder Summit at the Indianapolis Motor Speedway.