Royal Purple Racing 11 motor oil is a light-viscosity motor oil formulated to withstand exotic fuels such as alcohol, methanol, and nitrous oxide. Perfect for drag racing, Royal Purple Racing 11 motor oil has a viscosity typical of 5W20 oil. Professional engine builders and race teams have cited increased horsepower and longer engine life with the use of Royal Purple. Utilizing their proprietary Synerlec additive technology, Royal Purple's racing oils provide more protection than conventional motor oils, mineral or synthetic, including those combined with aftermarket additives.
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