You've pulled the trigger on a nice new truck and have taken it for a few laps around your neighborhood. With a new and unused engine, the motor oil found in your engine does not provide adequate wear protection, especially for engines using flat-tappet cams. The answer to this issue is the Royal Purple Break-in Oil! Featuring high quality mineral oil, the Royal Purple oil promotes gentle engine startups and provides superior protection from degradation! Combining a mixture of phosphorus and zinc, this featured break-in oil optimizes protection of flat-tappet and roller engines. After breaking in your engine, be sure to pick up the Royal Purple Break-in Oil from Alligator Performance!