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Seafoam - How Much?

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  • Seafoam - How Much?

    I was wondering how much Seafoam you are using per gallon for maintenance/fuel stabilization?

    The can says 16oz treats 6-12g of fuel/oil mix, avg 2oz/g. Do you mix it at 2oz/g?


  • #2
    Re: Seafoam - How Much?

    I have a 40 HP 2 Stroke Merc. which I pre-mix my oil.

    I only fill 6 Gallons a time on my bass boat.(12 or 14 Gallons fuel tank) Usually I try to add about 1/2 can every other fill up when i'm filling my boat up from 1/2 tank to full tank. (The rest goes into my jeep)

    I do this so at most times there is sea-foam in the gasoline to stabilize, and every other tank it is stronger to keep the engine clean. So far no problems

    Comment



    • #3
      Re: Seafoam - How Much?

      Thats a good idea. Thanks.

      Comment



      • #4
        Re: Seafoam - How Much?

        Does Seafoam REALLY stabilize fuel, clean carbon, remove moisture from fuel and oil, clean injectors AND provide good storage fogging as it claims? Just seems a little like snake-oil esque claims to me. I could believe that it's a good carbon cleaner/preventer, but that almost seems incompatable with some of the other claims.

        Comment



        • #5
          Re: Seafoam - How Much?

          It has been around for 50+ years so it must be able to stand up to scrutiny.

          Comment



          • #6
            Re: Seafoam - How Much?

            As a believer in this product, I can say YES. I've used it for years. $5.86 at my local farm store.

            Comment



            • #7
              Re: Seafoam - How Much?

              Been using 1 ounce per gallon +/-, for years.

              If I have 18 gallons of gas, 1 can of Seafoam goes in.
              If I have 13 gallons of gas, 1 can of Seafoam goes in.
              Medford, WI

              Comment



              • #8
                Re: Seafoam - How Much?

                Seafoam works great as a decarb an outboard. Too expensive to use it as a stabilizer in the boat.$$$$$
                Grady White 226
                200 Evinrude Ocean Pro
                Evinrude Renegade Offshore Prop

                Furuno FCV 587 Sounder
                Garmin 4208 Multifunction Display
                ICOM M504A VHF
                Shakespeare Galaxy 5225-XT Antennas

                Comment



                • #9
                  Re: Seafoam - How Much?

                  Originally posted by dingbat View Post
                  Seafoam works great as a decarb an outboard. Too expensive to use it as a stabilizer in the boat.$$$$$
                  Good point!! What do you use for a fuel stabilizer?

                  Comment



                  • #10
                    Re: Seafoam - How Much?

                    seafoam will keep a clean carb clean, that is my main point of using it. it will not clean a dirty carb. it is not snake oil.
                    FLORIDA GATORS
                    TEBOW Country



                    Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
                    That is what these forums are for. Post your questions, in the appropriate Forum.

                    Comment



                    • #11
                      Re: Seafoam - How Much?

                      Originally posted by tashasdaddy View Post
                      seafoam will keep a clean carb clean, that is my main point of using it. it will not clean a dirty carb. it is not snake oil.
                      I hadnt thought of that. A couple cans of Seafoam a year sure beats rebuilding/cleaning the carb every spring.

                      tashasdaddy, how much Seafoam are you using per gallon of fuel?

                      Comment



                      • #12
                        Re: Seafoam - How Much?

                        i use about 1 1/2 ounces. but i also do a decarb atleast every 2 years whether it needs it or not. i prefer this method of decarbing. i use it in all my 2 cycle motors,, weedeater, blowers, etc.

                        Decarb, take a can of seafoam put 3/4 of it in the gas tank, with only 1 gallon of premixed gas. put the rest in a spray bottle. start the engine, and let it come up to temperature. then remove plugs, and them some real good shot of seafoam into the cylinders, replace plugs, let sit 15 minutes. restart, and spray the rest of the seafoam into the carbs, so the the motor almost stalls, wait and repeat until the seafoam is gone.then take for a wide open spin. then put in new plugs, ad premixed gas to the tank, and take it for a wide open throttle spin. it is going to smoke like a house on fire, during this process.

                        afterwards compression.recheck
                        FLORIDA GATORS
                        TEBOW Country



                        Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
                        That is what these forums are for. Post your questions, in the appropriate Forum.

                        Comment



                        • #13
                          Re: Seafoam - How Much?

                          Thanks for the decarb instructions. I have a gallon of mixed fuel, a can of seafoam and a spray bottle all ready for my next day off.

                          I just put new plugs in it, will I still need to replace them after decarboning?

                          Comment



                          • #14
                            Re: Seafoam - How Much?

                            Originally posted by phipps View Post
                            Good point!! What do you use for a fuel stabilizer?
                            During the season I typically don’t use fuel additives except in “winterize” mode. I have a 92 gallon tank and typically burn 20-25 gallons an outing. I just top off before each outing to keep fresh fuel in the mix.

                            In theory, we can boat year round so come December I’ll start adding Sta-bil into the mix. You never know when the next opportunity to go out will present itself so I “winterize” just in case.

                            Got to love winterize an outboard
                            Grady White 226
                            200 Evinrude Ocean Pro
                            Evinrude Renegade Offshore Prop

                            Furuno FCV 587 Sounder
                            Garmin 4208 Multifunction Display
                            ICOM M504A VHF
                            Shakespeare Galaxy 5225-XT Antennas

                            Comment



                            • #15
                              Re: Seafoam - How Much?

                              Originally posted by tashasdaddy View Post
                              seafoam will keep a clean carb clean, that is my main point of using it. it will not clean a dirty carb. it is not snake oil.
                              How does it do this? (keep carbs clean) Why is it better than normal fresh gasoline and good quality oil?

                              Comment

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