Thread: Seafoam?

Hi Mark
I usually mix up a gallon of gas with sea foam and do a decarb every spring then a can in the tank maybe once or twice a year. Motor is 25 years old and still running strong. Never had any problems related to fuel or compression.

We use Marine Stabil in every tank. Also stabil in lawnmower gas at end of year.

Originally Posted by LSL Angler

How many of you guys use this and has any body had a negative result from using it? How often do you use it? Thanks.

My boat has had it added to gas since before I owned it ... 1999 Merc 90HP 2stroke ... still runs great. I usually put a can in every other fill up over 1/2 tank.

I use it a couple times every year. 91 Yamaha 150hp, 2 stroke still runs great.

Use a can with every fill up 50 merc 4 stroke

Add it to every tank. No issues.

Use it in the boat gas truck gas and truck oil when it is time to change it. Everything still works like it should and no problem with water in the gas

Originally Posted by truman13

Use it in the boat gas truck gas and truck oil when it is time to change it. Everything still works like it should and no problem with water in the gas

How long do you leave it in the oil before you change it?