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Keep your car clean. Mud on the undercarriage can weigh a significant amount and slow you down.
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Consolidate your daily trips and errands. This will also save you the cost of restarting your engine, which uses a lot of gas.
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Avoid air conditioning when possible. However, when driving at higher speeds, having your windows open also creates drag.
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Don’t throttle the gas or brake! Sudden starts or stops use more gas than gradual changes of speed.
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Don’t idle for too long. Turn off the engine if you anticipate a lengthy wait.
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Limit car warm-ups in winter.
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Clear out the trunk. More weight, more drag.
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Avoid high speeds. We know this is almost impossible to resist but you can improve your gas mileage about 15 percent by driving at 55 mph rather than 65 mph.
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Use overdrive. If your car is equipped with overdrive gearing use it as soon as your speed is high enough.
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Use cruise control. Keeping a constant speed is ideal for improving your gas mileage.
