COMP Cams 159 Engine Break-In Oil Additive, 12 oz. Bottle
Protects all internal engine components, including flat and rod bearing Oils. Improves surface mating of rotating assembly, rod journals, Piston Rings, valve guides, cam and lifters, etc.
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73% were satisfied with the cold start performance
89% liked its compatibility with engines
69% liked the foaming resistance
Experiential insights by users
When I pull up long grades, the Jeep heat gauge used to move a noticeable amount. Now, it doesn't even budge!
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