Specially formulated, super strength treatment when added to engine oil creates a chemical reaction bonding directly to the metal surfaces displacing corrosion and forming a super slippery surface. Friction is dramatically reduced (up to 80%) which also means enhanced performance. Wear can be reduced as much as 90% and engine rebuilds can be significantly extended. Because this product actually bonds to the metal, generally one application is all that is necessary. It is recommended that a treatment be added after each rebuild. LuBoron Marine Engine Oil Treatment is compatible with all engine oils and exceeds all manufacturers engine warranty requirements. Base oil used meets or exceeds A.P.I. Service requirements. 16 oz (473 ml) high concentrate formula US Patent # 5,431,830 Boron CLS Bond is biodegradable.