Air filter cleaner

K&N Power Kleen is the only cleaner recommended for cleaning the cotton of K&N air filter elements. K&N Power Kleen dissolves dirt buildup and old filter oil. Using any other cleaning solution may void your air filter warranty. It is so good at cleaning greasy dirt and grime that it can also be used as an industrial strength degreaser by removing deposits from most surfaces, including cotton air filters, painted surfaces, chrome, plastic and more!