Hot Shot uses new, high-efficiency biodegradable detergents and solvents for outstanding results. Hot Shot is a very powerful degreaser/cleaner that completely dissolves grease and dirt. The versatility of Hot Shot allows it to be used not only for degreasing engines and associated parts, but also for cleaning wheels, tires and underbody. Hot Shot can be used at full strength for tough applications, or can be diluted with water for lighter cleaning.