Marine Grez-Off Heavy Duty Degreaser - 32oz Bottle#1 Rated Marine Degreaser by PowerBoat ReportsMarine Grez-Off is a biodegradable, non-solvent heavy-duty degreaser that easily cuts through oil, grease and grime. Cleans and dissolves heavy soils on inboard & outboard motors, machinery and dock equipment. Also recommended for bilge cleaning. Marine Grez-Off is VOC compliant, non-flammable and non-combustible.Use on:Inboard and outboard motors, bilges, machinery, docks and mooring equipment, trail