Royal Purple Racing 9 motor oil is an ultra-light viscosity motor oil formulated for gasoline engines used in drag racing and motorcycle sprint racing. Racing 9 motor oil has a viscosity typical of 0W10 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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