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SMALL CHANGES TO YOUR CAR CAN SAVE TONS OF CO2.

No, you don't really need to carry plants around, like this guy. But allowing your car to idle for 10 seconds uses more gasoline than turning the car off, then on again.

ENGINE - simple tune-up can improve your car's fuel efficiency from 15-50%

WINDOWS - Driving at highway speeds, open windows increase drag and cost you fuel. Cool off by popping open the car's vents.

TIRES - Keeping your tires properly inflated will save you about one tank of gas per year. Check the tire pressure monthly, using the same gauge every time. The average tire loses about one pound per square inch every month. Underinflated tires don't roll as efficiently and wear out faster.

Visit www.fueleconomy.gov/feg/drivehabits.shtml for more information.