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36. Studies show that there is no need to let your car idle for more than 30 seconds even in cold weather and that idling will reduce your fuel consumption. When you pay attention to how much you are paying for your gasoline instead of just stopping at the first convenient gas station you can be assured that you are taking some control for saving money at the gas pump. 45. One of the ways to use your air conditioner is to use it for minimal amounts of times.

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fueleconomy. com/DEavg. com/SCavg. If more people walked, rode their bikes, or took public transit there would be less pollution.