Adding Sea Foam to pre-mixed 2-stroke gasoline [SOLVED] Asked by Mark S. In Iowa Can I add Sea Foam to 2-stroke mixed gas? And at what ratio?
HI Mark. Yes, Sea Foam can be added to any oil & gas premix. At a minimum, 2 ounces per gallon of gas. You can add more if the engine is starting or running rough and needs a higher cleaning concentration. Hope this helps!