In my car I put a bottle of Techron in the tank every oil change. My F150 is 5 years old now, only 150 hours though. I wonder if I should add a bottle to the tank when I get it out next week? I only put premium ethanol free gas in so I think that's "top tier" so maybe no need? Opinions?
I put a can or 2 or 3 of Marine seafoam everytime I fill up with gas depending on how much fuel I put in the boat. I think its 1 oz per gallon of gas. Did this will all outboards i have owned for years and even my jet boat motors and use the regular seafoam in some of my older used trucks with higher miles.