So if you're into engine building or maintaining older vehicles, this REV X ZDDP additive is seriously important stuff! It's the most concentrated zinc additive available - when you mix it with 6 quarts of oil, you get 3000-3200 parts per million of zinc protection. That zinc is crucial for protecting flat tappet camshafts (both hydraulic and solid) from wear during break-in and normal operation. It also helps lubricate roller lifter bearings and provides maximum metal-to-metal protection throughout your engine. Modern oils have reduced zinc content due to emissions regulations, but older engines and high-performance builds still need that extra protection. Whether you're breaking in a new engine, running a classic car with flat tappet cams, or just want extra protection for your engine, this additive does the job properly. The concentration means one bottle treats 6 quarts, so it's cost-effective too. If you're doing engine work or maintaining vehicles with flat tappet cams, using a quality ZDDP additive like this could save you from costly cam and lifter damage down the road. Seriously, it's one of those additives that actually serves a important purpose rather than just being snake oil!
Free 30-day returns 
Free 30-day returns
