Thread: what fuel additive if any ?

I stand corrected. Sea Foam was manufactured in the 1930's. This was one of the original cans. Nothing last's that long if it don't work.

Sea foam, everytime in every can of fuel I buy no exceptions and no problems.

I have been in the outdoor power equipment business for 35 years and have access to many brands, but in my equipment, I use Seafoam.

Been using Blue Stable Marine with premium gas for years every tank....7 years running heavy use on the motor with no foul ups no major Mech work needed. That's about all i can say. I am sure there are better ways out there. I use Mercury motors.

I'm gonna tell ya what a repair/service tech advisor (mechanic) told me today from one of the major outboard engine companies.

He said do not store your fuel for extended lengths of time with Seafoam in it. The acetone in the Seafoam will destroy the rubber parts in your fuel system if you do. He recommended any of the stabilizers. He said the Seafoam is a great cleaning agent but isn't designed for long term storage in your system, and will cause damage if you do it. I know most of us don't store our boats for long extended periods, but we do other small engines like chainsaws, 4 wheelers, lawn mowers, etc.

I choose to take his advise because of his experience. You may or may not. I prefer Star Tron or Stabil especially if you use ethanol.

Or we talking 2 cycle or 4 cycle or both.

Add Sea Foam Motor Treatment to every tank of marine engine fuel – Just pour it in!

• Sea Foam Motor Treatment works to dissolve and clean fuel deposits and sticky residues from gas and diesel injectors, carburetors, and combustion chambers.
• Sea Foam helps to stabilize stored fuel for up to two years by resisting evaporation, preserving ignition vapors, and preventing the formation of gum and varnish.
• Sea Foam provides high-temp upper cylinder lubricity and helps to protect the entire fuel system from dry out, wear and corrosion.
• Sea Foam only contains petroleum-based ingredients. It does NOT have harsh detergent or abrasive chemicals that can harm your engine. The more you add to fuel, the better it cleans

Originally Posted by trypman1

Or we talking 2 cycle or 4 cycle or both.

Both