Master mechanic, gallon, general purpose, AW 32 hydraulic oil, containing a highly effective rust & oxidation inhibiter, a foam depressant & a moderate extreme pressure anti-wear additive, SAE20 weight, use in log splitters, trash compactors, dump trucks, fork lifts, front end loaders & other hydraulic systems, meets or exceeds: Dennison HF-O, HF-2: Cincinnati milacron P-68, P-69, P-70 & ASTM D-2882 vane pump wear tests.