Great stuff, it quiets lifter tick noise, gives you better gas mileage, and helps your engine run more efficiently. Good protection on cold start ups and at extreme hot temperatures. Good for all engines both high mileage or new. I add it to all my vehicles when doing oil changes. Whether it's a 400hp muscle car, or your daily commuter Honda Accord. It's a great additive esp when paired up with full synthetic oil. Basically just like BG MOA, but half the price.