Red Line 40WT 15W40 Synthetic Racing Oil (Set of 4 x 1 Gallon) 10405

Red Line synthetic racing oils are formulated with high-quality, synthetic base stocks to deliver superior performance and extended equipment life. These oils boast exceptional thermal stability, translating to superior high-temperature lubrication and a more robust film strength. Notably, Red Line racing oils categorized as "straight grades" exhibit low-temperature properties characteristic of multi-grade oils. They can increase power output by 2 to 4 percent compared to oils of similar viscosity while offering superior protection. Notably, each viscosity grade reduction can provide an additional 1 to 2 percent power gain.

Red Line racing oils find application in diverse racing environments, including stock car racing, road racing, and sprint car racing. Their effectiveness is further attested to by their use by leading Dirt Late Model teams and top competitors in the NASCAR series, including the Spec engines designated for the Camping World East and West Series.