This additive is designed to extend the life and operating range of your engine. It blends with your existing engine oil and contains boron-based components that protect vital working parts from friction and corrosive elements. The Engine Treatment actually forms a near-diamond hard surface on metal parts, providing a super-slick surface. Unlike Teflon or Mineral Oil based products, the chemistry of Boron CLS Bond is sub micrometer to micrometer size which allows the particles to penetrate into the tightest crevices between sliding metal parts. The new surface also blocks oxygen to prevent corrosive activity. This micro-layer of protection is bonded to metal surfaces with strong covalent and ionic bonds. It provides long-lasting, low-friction surface impervious to most contaminants. LuBoron Engine Oil Treatment is compatible with all engine oils and exceeds all manufacturersˇ¦ 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.