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Can a clean car get better gas mileage than a dirty car?

A car is covered with mud and dirt.

How often do you wash your car? Once a month? Maybe twice a year? Whatever the answer, we bet you’d probably wash it more often if you knew it would lead to better fuel economy. But is it even possible?

Does a clean car equal better fuel economy?

Two men wash a car. | Getty Images

RELATED: Common Car Wash Practices That Will Ruin Your Car