Redline Oil's 40WT Race Oil (15W40) is a powerful and versatile racing oil, ideal for stock car racing, road racing, and sprint car applications. Widely used by leading Dirt Late Model teams, as well as top NASCAR teams and Spec engines in the Camping World East and West Series, this 40WT formula offers the robust protection and reliability that professional racing demands.
Specially engineered for the rigors of the track, Redline’s 40WT Race Oil provides significantly more wear protection than standard passenger vehicle oils, but with fewer detergents, making it ideal exclusively for racing. Reformulated with friction-reducing properties, this oil enhances engine lubricity while minimizing the risk of detonation, ensuring a consistent, high-output performance in demanding conditions. Its polyol ester base stock delivers superior stability and a strong oil film, even when fuel dilution is present.
Each quart of 40WT contains no less than 2200 ppm of zinc and phosphorus, supplying potent anti-wear protection vital for racing engines. Designed as a multi-grade oil, 40WT can deliver an impressive 2-4% increase in horsepower compared to similar viscosity oils, while also offering lower oil temperatures, excellent startup protection, and superior cleanliness. For optimal results, Redline recommends more frequent oil changes compared to standard motor oils, keeping engines in peak condition throughout the racing season.
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