WHY MAMMOTH TRUSTS THIS PRODUCT

We recommend PHILLIPS 66® VICTORY® AW 20W-50 for the operator who demands maximum engine life with zero guesswork. In the Pacific Northwest, cold starts are a daily reality, and that’s when your camshaft and lifters are most vulnerable. Victory AW is the Gold Standard because it takes the proven multi-grade performance of X/C® and pre-blends it with the precise concentration of Lycoming-approved anti-wear additive (LW-16702). You get instant oil circulation to the top end and a permanent chemical shield against scuffing—all in one pour. It’s the ultimate "peace of mind" fluid for hitting the skies.