Engine builders have grown increasingly concerned that many modern motor oils do not provide adequate wear protection for new engines, particularly those using flat-tappet cams. Royal Purple has created an engine break-in oil specifically to address this problem.
Royal Purple Engine Break-in Oil is formulated to allow optimal ring seal. It also protects rotating assembly components, such as the camshaft and valve train from initial start up wear. Royal Purple combines highly refined mineral oil, preferred for engine break-in, with advanced additives containing high levels of zinc and phosphorus to optimize protection in flat tappet and roller engines.
New or rebuilt engine should be filled with break-in oil to the engine’s manufacturer’s specified oil level. Royal Purple's break-in oil is fully formulated and does not require the use of any other chemical additives. Royal Purple recommends using their high performance motor oils after the engine is broken in for maximum engine performance.
• Royal Purple Break-In Oil is an SAE 10W-30 viscosity.
• DO NOT use break-in oil beyond 2500 miles.