K&N AIR FILTER CLEANER & DEGREASER is the only cleaner specially formulated to clean K&N Filtercharger elements.Ø The biodegradable formula isØsafe on paint, chrome,Øplastic, rubber and vinyl when used as directed.Ø Ø Easily dissolvesØold filter oil Can be hosed off withØwithØwater Pump sprayØ Note: Guard against use on polished or anodized aluminum