Erson’s Break-In Oil Additive 4 oz. with ZDDP is the best insurance for your new performance engine or classic car with flat tappet lifters and camshaft.

• Safe, proven ZDDP EP agent takes the worry out of using new oil formulas in engine that have flat tappet camshafts and lifters.
• Turns modern SM quality oil into the ideal oil for superior break-in and everyday use for superior protection.
• Compatible with ALL high-quality oils, standard or synthetic. •You choose your preferred oil.
• One 4 oz. bottle of Erson’s ZDDPlus™ per oil change with SM oil is more economical than 5 quarts of exotic oil.
• Erson with ZDDP is economical and provides the protection required for high performance engines.
• Great for every oil change.