I been watching a thread on the Hull Truth about fuel additives and am amazed at the number of boaters who use fuel additives. Most guys swear by them. I tried Stabilizer once in a ATV and upon finding a red residue in the gas tank the following spring never used it again.
Alaskans run there equipment hard when they have to. High revving jet outboard, long trips on the Yukon, etc. And to make matters worse most of our toys go into storage from about Sept to May.
I always carry a couple of containers of the red "Heet" just in case we pick up more water than the fuel separator can remove but other than that never used any additives and never noticed any problems with performance. Would rather spend our extra cash on gas and beer.
How about you?