Bel Ray V-Twin Semi-Synthetic Engine Oil Features: Exclusive Bel-Ray anti-wear chemistry reduces bearing and valve train wear and keeps pistons and rings from scuffing Features high polarity synthetic base oils which provide minimum friction for increased power Unsurpassed shear and oxidation stability with low volatility base oils that eliminate viscosity breakdowns and formation of sludge and deposits for longer drain intervals and low oil consumption Advanced multi-grade formulation means cold starts are safe and easy Removes deposits, dissipates heat and lowers friction to reduce engines operating temperature