Delivering added protection during the break-in process and beyond for all engine components, including the camshaft and lifters, COMP Cams Engine Break-In Oil Additive is compatible with any petroleum, synthetic, or blended motor oil. COMP Cams Engine Break-In Oil Additive extends the durability of internal engine components, protecting against premature camshaft, lifter, and valvetrain failure. Best of all, COMP Cams Engine Break-In Oil Additive has been proven to deliver long-term benefits with new or rebuilt engines through continued usage. Simply pour in a bottle for the initial break-in, run the engine for approximately 1,000 miles, drain the system thoroughly, and then refill with clean oil and another bottle of COMP Cams Engine Break-In Oil Additive at each oil change.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
