EVINRUDE JOHNSON CARBON GUARD 355 ML

What does it do?

The Carbon Guard additive is a gasoline additive formulated to minimize carbon deposit build-up in 2-Stroke and 4-Stroke marine engines.

1. Reduced possibility of piston ring sticking
2. Reduced carbon build-up in 4-Stroke intake valves
3. Better overall engine performance
4. Increased engine life