Lucas Oil Synthetic 20W50 High Performance Motor Oil provides the consistent viscosity needed for precision ET racing. It also stands up to heat and fuel dilution for the longevity required by circle track and off-road racers. Lucas Synthetic 20w50 is a formulation of only the finest light synthetic base oils plus an exclusive additive package that includes lubricity agents and anti-seize agents that control drag like a zero weight oil and protect like a heavy multi-viscosity oil. It is the perfect non-foaming lubricant for high RPM performance engine, including motorcycle engines. It's also great for normal highway use.