Clean Engines run cooler, look better & last longer! GUNK® Foamy formula quickly removes dirt, dust and road grime from Cars, Trucks, Power Mowers, Marine, RV’s, ATV’s, Bikes, Farm Equipment and Tractors. Clean your engine with GUNK® Foamy and then protect it with GUNK® Shine. Safe on most underhood rubber, plastic and paint when used as directed.