Driving Tips
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Idling gets you 0 miles per gallon. The best way to warm up a vehicle is to drive it. No more than 30 seconds of idling on winter days is needed. Anything more simply wastes fuel and increases emissions.
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Aggressive driving (speeding, rapid acceleration, and hard braking) wastes gas. It can lower your highway gas mileage 33% and city mileage 5%.
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Avoid high speeds. Above 60 mph, gas mileage drops rapidly.
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Clear out your car; extra weight decreases gas mileage by 1% to 2% for every 100 pounds.
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Reduce drag by placing items inside the car or trunk rather than on roof racks. A roof rack or carrier provides additional cargo space and may allow you to buy a smaller car. However, a loaded roof rack can decrease your fuel economy by 5% or more.
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Check into telecommuting, carpooling and public transit to cut mileage and car maintenance costs.
Car Maintenance Tips
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Use the grade of motor oil recommended by your car's manufacturer. Using a different motor oil can lower your gasoline mileage by 1% to 2%.
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Keep tires properly inflated and aligned to improve your gasoline mileage by around 3.3%.
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Get regular engine tune-ups and car maintenance checks to avoid fuel economy problems due to worn spark plugs, dragging brakes, low transmission fluid, or transmission problems.
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Replace clogged air filters to improve gas mileage by as much as 10% and protect your engine.
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Combine errands into one trip. Several short trips, each one taken from a cold start, can use twice as much fuel as one trip covering the same distance when the engine is warm.
(Courtesy of U.S. Department of Energy)
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