Gunk M5112 Octane Performance Booster 12 oz Bottle

Restores engine performance. Contains additives that remove water and fight rust. Reduces emissions, knock, ping and hesitation. Cleans injectors, intake valve and combustion chamber deposits. Removes deposits which tend to cause engine octane requirements to rise. After use of product, many engines will accept regular unleaded gasoline without knocking, pinging and after-run. In a plastic bottle.