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U.S. Department of Energy - Energy Efficiency and Renewable Energy
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www.fueleconomy.gov - the official government source for fuel economy information

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    • Vehicles produce about half of the greenhouse gases from a typical U.S. household.
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    Your Mileage Will Still Vary

    • Your Mileage Will Still Vary
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    • Learn about vehicles and technologies that are pushing the fuel efficiency envelope.

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    Where the Energy Goes

    • Only about 14%–26% of the energy from the fuel you put in your tank gets used to move your car down the road.
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Compare Old and New MPG Estimates

Model Year: 2007

Make: Pontiac

Model: Grand Prix

Select Engine and Transmission Options...

  • Automatic 4-spd, 6 cyl, 3.8 L, Premium Gasoline, Supercharger, CLKUP
  • Automatic 4-spd, 6 cyl, 3.8 L, Regular Gasoline, CLKUP
  • Automatic (S4), 6 cyl, 3.8 L, Premium Gasoline, Supercharger, CLKUP
  • Automatic (S4), 8 cyl, 5.3 L, Premium Gasoline, CLKUP
View Engine and Transmission Descriptors
  • Old vs. New Ratings
    • 2008 Ratings Changes
    • Compare Old and New Ratings
  • Your Mileage Will Still Vary
  • Fuel Economy Tests

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