Trinity after burn oil helps keep your engine running in top condition. Helps prevent gum and varnish build-up. Great for 2- or 4-stroke engines. This package includes one four ounce bottle of Trinity Final Solution After Burn Oil and one plastic cap with flip top dispenser.

Putting a few drops in the glow plug hole and the carburetor inlet hole and cranking the engine 2-3 times to coat all internal parts.