V-Twin Full Syn is a full synthetic, ester-fortified 4-stroke engine oil specifically formulated for V-Twin engines. Synthetic, oxidatively stable formulation combines surface-active esters with a shear-stable polymer system to provide excellent film thickness and viscosity stability across all operating temperatures. Advanced, proprietary additive system with industry-leading extreme pressure and anti-wear protection keeps your engine running clean, trouble-free free and extends the life of the machine.