Features and Benefits:Meets OEM performance specifications;High performance synthetic PAG for R134a systems provides excellent resistance to moisture;Anti-Wear Agents and Friction Modifiers enhance compressor & A/C system efficiency while reducing compressor wear rates which extends compressor life;Anti-Oxidants protect system against formation of sludge and other deposits which can shorten compressor life and reduce system efficiency;.;Supercool Advanced Formula PAG Oil WITH UV Dye 46 cSt low viscosity - Quart.