Royal Purple
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For other uses, see Royal Purple (disambiguation).
Royal Purple is an American manufacturer which produces lubricants for automotive, industrial, marine, motorcycle and racing use. It is known primarily for its line of Royal Purple Motor Oil products for use in gasoline and diesel engines. However, the company produces many other fluids. These including those for use in automotive and motorcycle differentials, transmissions, power steering pumps and radiators. Other products include a rust penetrator and a firearm lubricant.