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Royal Purple Motor Oil 15W-40

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Long life, high film strength engine oil that greatly exceeds the performance of other premium mineral and synthetic oils

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Royal Purple Industrial Lubricants


Royal Purple Motor Oil is recommended for use in all four-cycle gasoline engines and both two-cycle and four-cycle diesel applications including automotive, commercial fleet and stationary industrial diesel engines.

Royal Purple Motor Oil is a tough, long life, high performance oil that delivers superior protection and enhanced performance to gasoline and diesel engines. It gains its performance advantages from a blend of synthetic base oils plus Royal Purple's advanced synthetic additive technologies.

Royal Purple's proprietary additive technologies greatly reduce engine wear, including ring, cylinder and bearing wear. It is extremely tenacious, adheres to engine surfaces and remains after shutdown, which provides protection upon initial startup.

Performance Advantages:
  • Greater Wear Protection
  • Greatly Extends Oil Drain Intervals
  • Superior Corrosion Protection
  • Saves Fuel
  • Reduces Exhaust Emissions
  • Increases Horsepower
  • Keeps Engines Clean
  • Mates Engine Parts
  • API Warranty Approved
  • Will Not Harm Seals
  • Environmentally Responsible


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