How Much Can A Dirty Air Filter Affect Mpg?

How Much Can A Dirty Air Filter Affect Mpg? Replacing an old engine air filter can go a long way towards increasing the vehicle’s efficiency. In fact, changing a dirty engine filter can improve gas mileage by as much as 10%. Can a dirty air filter cause poor gas mileage? If the air filter is … Continue reading How Much Can A Dirty Air Filter Affect Mpg?