You spent a lot of time and money rebuilding that lovely engine—it’d be a shame to see it go boom.

Its very life is in the hands of a thin film of oil on the moving parts. That’s why it’s important to do a proper engine assembly and break-in procedure using high-quality assembly lubricant, break-in oil, and motor oil like those made by PennGrade 1 Oil.

Penngrade 1 Engine Assembly Lubricant
(Image/Summit Racing)

PennGrade 1 High Performance Engine Assembly Lubricant prevents premature parts wear during initial startup. It provides higher load-carrying ability and excellent surface film protection for highly stressed internal components such as cams, lifters, and other valvetrain components; piston wrist pins; and rod and main bearings.

PennGrade 1 High Performance Engine Assembly Lubricant does not contain solids like molybdenum or graphite that can cause clumping and/or plug oil filters. It is compatible with mineral-based and synthetic engine oils.

Penngrade 1 Engine Break-In Oil, SAE 30, Quart Bottle
(Image/Summit Racing)

Before you start the engine for break-in, fill the crankcase with PennGrade 1 Break-In Oil. The SAE 30-weight oil is formulated with premium base stocks and an additive system with high levels of zinc dialkyl dithiophosphate (ZDDP). This helps prevent metal-to-metal contact and premature wear of critical engine parts. That allows the engine components to seat properly for maximum engine performance and life.

Penngrade 1 High Performance Motor Oil, 50 Weight, 5 Quart Bottle
(Image/Summit Racing)

Once your engine is broken in, keep it protected with PennGrade 1 High Performance Motor Oil. It has strong detergents, dispersants, and ZDDP anti-wear additives to keep deposits off of critical engine parts. It provides excellent shock load and high temperature protection for heavily stressed parts including bearings, camshafts, rings, and pistons. PennGrade 1 oil also reduces internal friction for increased horsepower output while maintaining its strong lubricating film protection, even under the most demanding torque and extreme temperature conditions.

PennGrade 1 High Performance Motor Oil is available as a synthetic blend in 5W30, 10W30, 10W40, 15W40, and 20W50 viscosities, or mineral-based in 30-, 40-, 50-, 60-, and 70-weight viscosities.