Lucas Oil (345) 10943 Semi-Synthetic SAE 10W-40 Racing Engine Oil, 1 Quart

It’s common knowledge that as oil temperature increases, viscosity decreases. The best way to combat this issue is a higher viscosity, thermally stable engine oil that can perform consistently at these elevated requirements. Fortified with ZINC Technology and bolstered with the Lucas Semi-Synthetic additive blend. Resists thinning out at high crank-case temperatures, Resists breakdown and contamination from exotic fuels such as nitro and methanol.