Red Line 40WT Race Oil (15W-40) — Engineered for Circle Track Performance
 
Built for the intense demands of circle track racing, Red Line 40WT Race Oil (15W40) is a fully synthetic race oil delivers exceptional protection, power, and clarity under extreme conditions.
 
Multi-grade 15W-40, offering 2–4% more power than conventional oils of similar viscosity
Reformulated for enhanced frictional properties and lubricity, helping reduce detonation
Made with polyol ester base stocks for superior film strength and thermal stability, even under heavy fuel dilution
Loaded with at least 2200 ppm of zinc and phosphorus (ZDDP antiwear additives) to protect critical components like cams and lifters
Provides better startup protection, lower operating oil temperatures, and enhanced engine cleanliness
Optimized for frequent oil changes in race conditions—designed to be refreshed after every event for peak performance
Trusted across circle track disciplines—used in stock car racing, sprint cars, Dirt Late Model teams, NASCAR Spec engines, and more
 
Why Circle Track Racers Choose It:
Circle track racing pushes engines to the edge—high RPMs, sustained load, and extreme heat. Red Line’s 40WT Race Oil excels in these environments by offering:
 
Unmatched wear protection with robust additive levels
Consistent lubrication even when fuel dilution challenges oil integrity
A clean, powerful ride, helping your engine run cooler and stronger lap after lap
 
Sold by the case: 12 x 1-qt. bottles