Reviewed By Richard E (Hanover, PA) Reviewed for a 2000 Ford Contour —11/21/2009 1:57 AM
By placing a K&N filter next to a competitor's filter, one can see how a K&N filter would not inhibit air flow. Since I am new to this and have just received the filters for my cars, I will have to experience how they perform from mileage checks and from perceived performance from driving the cars once the filters are installed. The only thing that I am concerned with is how these filters can function so long before cleaning; especially since these filters are coated with a type of oil or lubricant. Other filters have a lot of debris in them after some use and one would think that a K&N filter would collect even more debris since they are coated with a type of oil.