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Why is there such a difference between highway and around town miles per gallon?

Asked by janbb (62884points) May 5th, 2019

If I’m doing errands around town my car’s average mpg is about 17 or 18. It rises to about 22–24 if I am doing highway driving. I know this kind of difference is standard but am wondering why. Is it the frequent stopping and starting or breaking that causes such a drain on your gas consumption?

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