re: Boat fuel tank additive

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Ive a 2 stroke 60hp mercury. It's ethanol free gas, seafoam, and Lucas 2 Stroke synthetic blend 50:1 oil. Cranks and runs like an old timey Singer sewing maching.

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Is there any doubt that modern 4 strokes will provide the years of service as trouble free as those old 2 strokes have and still do? I have a Evinrude 150 2 stroke from the mid 80s that has been owned by about 10 different people and that damned thing fires up almost as quick as an electric motor and runs like a top. I have a 2018 Mercury 60 HP with less than 50 hours on it and I have spent more time maintaining the thing than any outboard I ever owned and I have owned a bunch. Its not a bad engine, in fact it is a fantastic engine, it just has more maintenance requirements than any 2 stroke I ever owned. That 150 will run on anything....as long as its not overly rich it will run like a top. That 60 HP HATES anything but ethanol free gas. it will burn it but it doesn't perform like it should. That 150 would probably run on about 20% water LOL....it just keeps on going. I have wanted to repower that boat for years and almost did last year with a 140 HP Suzuki at a bargain...just can't justify doing so.