Royal Purple Motor Oil Ultimate Synthetic Performance "THE PERFORMANCE OIL THAT OUTPERFORMS®" Royal Purple Motor Oil delivers tough, long life performance that greatly exceeds other premium mineral and synthetic oils. What makes Royal Purple Motor Oil so tough? Only Royal Purple  Motor Oil has the proven performance advantage of Synerlec, Royal Purple's slippery, super-tough synthetic film. Synerlec's high load carrying ability greatly reduces all engine wear, including ring, cylinder, and bearing wear. Synerlec™ is extremely tenacious, adheres to engine surfaces and remains there after shutdown providing instant protection on startup. Royal Purple Motor Oil is so tough, it withstands the effects of heat far beyond other motor oils. |