Re: Which outboard engine oil
Sec, yes you still need to decarbon...I don't recommend any additives if you deacrabon the engine every 50-75hrs. It's simple procedure with 3 gal tempo fuel tank at stated in the link above. Throw a pint of outboard oil in that same mix and you've got the perfect winterizing juice. I have extreme doubt's if any of those carbon inhibitor additive's do any good at all. The worse part of them is people think by using them they don't need to do real decarboning.
Ed, you know I've never seen or heard of one of those the 12 spark plug Suzy's with a carbon problem. I've thought for a long time that extra spark helps for a cleaner burn in the combustion chambers.
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