I noticed my car burns more fuel in winter. I don’t use the heater or Air Con. So all being equal why more fuel? Is it something to do with Oxygen density in cold weather? If so, please explain 🙂
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Why don’t you use the heater? It shouldn’t affect fuel economy like ac does, and ac is more efficient than wind drag in the summer at highway speeds.
Warming up the car also uses some fuel, and you should be doing that.
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