Royal Purple Multi-Grade Synthetic Motor Oil Royal Purple Multi-Grade Motor Oil is recommended for use in all four-cycle gasoline engines and both two-cycle and four-cycle diesel applications including cars, trucks, motor homes / RVs, boats, 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 oils plus Royal Purple''s proprietary, synthetic Synerlec additive technology. Synerlec additive technology greatly reduces 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. Royal Purple''s 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 Royal Purple Motor Oils are compatible with other mineral and synthetic motor oils. Environmentally Responsible: Royal Purple Motor Oil extends oil drain intervals. Less oil is purchased and less oil is being disposed of - It''s good for your vehicle, and good for the environment! Royal Purple''s relentless pursuit of excellence within the lubricant industry consistently produces a reputation associated with quality and superior performance in both automotive and industrial markets. Try Royal Purple today and see why it truly is the performance oil that outperforms"