Lucas 15W-40  Magnum High TBN CI-4 Oil is a blend of high quality base oils and an additive package that allows extended drain intervals and a much higher degree of protection from metal to metal contact.

The "PLUS" is for an extra additive package above and beyond a normal 20w-50 racing oil. This formula was developed and perfected through three years of track testing to specifically reduce heat and subsequent wear in short track NASCAR racing.

Lucas Petroleum Motor Oils are formulated with the highest quality paraffinic base stocks and an exclusive high performance additive system, including lubricity and anti-seize agents.

Lucas Semi Synthetic Motor Oil is a blend of high quality base stocks and an exclusive high performance additive package that ensures minimum drag, extended engine life, longer oil life and easy cold weather starting.