BRP Johnson Evinrude Carbon Guard

Carbon Guard is a gasoline additive formulated to minimize deposit build-up in marine engines. It reduces piston ring sticking, carbon build up on valves, and enhances overall engine performance and life. For 2-cycle engines, add 1 oz. for every 8 gallons of gasoline. For 4-cycle engines, add 1 oz. for every 16 gallons. Engine with over 100hrs of operation should use Evinrude Johnson Engine Tuner before using Carbon Guard.