High-performance cleaner and degreaser specifically formulated to remove oil, lubricants, grease, grime and other deposits, Formulated to clean K&N Filtercharger air filter elements, Dissolves dirt buildup and old filter oil; washes away with water, Biodegradable; safe on paint, plastic, cast aluminum and rubber, Instructions included, Made in the U.S.A., Do not use on polished or anodized aluminum.