A clean car gets better gas mileage–a proven fact.

“A clean car gets better gas mileage–a proven fact.”

This statement can only be true at highway speeds. In the real sense, the car’s mpg may not be affected by a little dust on the cars body. Equally we can say that there is no measurable effect of a little dirt on the cars mpg. However, if your car has big clumps of dirt that considerably alters the flow of air along its surface, then it reduces your gas mileage. This can be supported by the fact that.............