Royal Purple® Racing Oils gain their performance advantages through Royal Purple's proprietary Synerlec® additive technology.
Royal Purple® Racing Oils provide more protection than conventional motor oils mineral or synthetic including those combined with aftermarket additives.
Royal Purple® Nitro Plus Racing Oils are straight-grade synthetic engine oils formulated specifically for use in blown alcohol, nitro-methane or any racing applications that experience excessive fuel dilution.
It absolutely is the most effective synthetic motor oil offered on the market today.
XPR 10W40 (formerly Racing 41) is designed for marine, oval track and endurance car racing. Capable of withstanding long intervals of extreme heat, it works especially well with alcohol and methanol. It is extremely popular in sprint cars, late models and World of Outlaws racing. Viscosity typical of a 10W40 oil.