After reading about Seafoam here on the TFF I decided to run some through my 82 Mariner 150, I have never used it before and thought it couldn't hurt. Man what a differance, The motor fires up quicker (it was very cold natured before) runs better and my boat is alot faster. Good stuff. Just my 2c.

Can Seafoam be used in conjunction with Sta-Bil?
Or just use Seafoam with a new tank and run it through?

I have even used the stuff in some coleman lanterns that would not burn right, assuming from either water or varnish but when I put the seafoam in there with the fuel they started working right again. That is some good stuff there, like others I use it in all my motors.

Yes...use Marine stabil, though. The blue-green one.

OK! I have a buddy who`s son is in his senior year at UT to become a petroleum engineer. (Quote) their is not a product made at this time that will prevent ehtynol mixed fuel degradation and that the blue is plan and simply a different color but 3 times the price. WOW Sounds like another rip-off. He said in their testing that some additives, actually hurt more than they help. The best news he had was the industry will soon have a much better ethynol that is extracted from saw grass. He said their test with it showed very little negative effects and actually showed positive results when mixed with gasoline. Best advice for ethynol, based on what I was told, was to use the additives designed for use by the outboard motor. manufactures.