“I was skeptical. I’ve been in this business for 15 years and have seen customers try several types of oil. Not one made any horsepower. When I finally tried Royal Purple it changed my point of view. Royal Purple produced a positive 6 to 7 horsepower. When we ran the dyno tests, the engines were supposed to reach 180° before performing the dyno runs.”

Most of the competitors engines exceeded 200°F range during the warmup. We could not get my engine above 120°F during the warmup, and after the dyno runs the engine only reached 132°F! I have since torn this engine down and all the components look excellent. I am very impressed with Royal Purple.”

—Joe Sherman, winner of the Inaugural Popular Hot Rodding Engine Masters Challenge

“I am new to Royal Purple after using AMSOIL for 25 years.

I am very satisfied. Royal Purple is giving me 3 more miles per gallon.”

—Louis w Hey III, customer