Description COM159 by COMP CAMS Motor Oil Additive, Engine Break-In, Zinc Additive, High Zinc ENGINE BREAK-IN OIL ADDITIVE – Provides additives no longer used in off-the-shelf motor oils. Compatible with petroleum, blended or synthetic motor oils. Protects during engine break-in and against premature camshaft, lifter and valve train failure. 12 oz. bottle
