Welcome Guest - Sign Up today
Welcome Guest - Sign Up today
Store Links Mobile - Shop Now

Announcement

Collapse
No announcement yet.

Oops! Accidentally added mixed gas tank.

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Oops! Accidentally added mixed gas tank.

    I feel like such a bonehead. I picked up a project boat, 1999 Maxum 1800 XR, this evening. It has not run in a few years and the price was reflective of that. Worth the risk in my opinion. The gas tank was empty so when I got home I decided to fill it some. I must have been excited because I grabbed my 50:1 mixed tank and accidentally started to fill the boat. I put about 1 gallon or so in before realizing that it was the tank for my 2 stroke. I plan to siphon tomorrow morning. Is there anything else that I should do?

    Thanks for your advice.

  • #2
    Hi all,

    I accidentally grabbed the fuel for my 2 stroke and added it to my 4 stroke's tank. The tank was empty and I only added about a gallon or so before realizing my error. I will siphon the tank in the morning. Is there anything else I should do?

    Thank you for your guidance.

    Comment


    • #3
      It makes no difference, just run it.

      Comment


      • #4
        I'm sure it will be fine other than smoking a bit.
        Can't be worse than adding snake oil.
        I think in the old days there was some oil product that went in the gas that was supposed to do something.

        I would just dilute it with straight gas.
        1980 Sylvan Aluminum 18' Sportster I/O - Mercruiser 140, Honda 7.5 Kicker, Bennett M120 Tabs
        1974 Glastron V-179, Mercruiser 140
        1984 16.5ft. Alumarine Sealark side console with 82 Merc 50
        Manitoba, Canada

        Comment


        • #5
          addysdady Merged both of your topics and moved to the proper section.

          No harm - Run it and no need to empty the tamk.
          Last edited by GA_Boater; July 14th, 2017, 10:46 PM.
          BOAT SPECS FORUM HELP STARCRAFT FORUM SHOP iboats
          Please, no PM's (Private Messages) regarding boat/engine problems.
          That is what the forums are for.
          Only forum/moderator issues will be answered in PM's.

          Comment


          • #6
            Just run it
            1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - http://forums.iboats.com/forum/owner...988-rogue-2420

            Past Boats
            1970 Wooster Hellion - Merc 9.8
            2002 SeaRay 190BR - 5.0 - A1G2 - "Cheasheads in Paradise"
            1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

            What’s behind you doesn’t matter.Enzo Ferrari

            Comment


            • #7
              Won't do it any harm what so ever. You put 1 gal of fuel that was 2% oil. If you have a 30 gal tank , filled, you now have less than 0.0067% oil

              Comment


              • #8
                Not only that, we winterize our outboards on a 25:1 tank.. 2 stroke or not, they get it. The I/O's get a HEFTY dose of fogging oil too, unless EFI.

                If anything, I'd actually run it on a 50:1 for the first bit.. lol Lubrication has never killed an engine, truth.

                Comment


                • #9
                  Just finish filling it with plain gas and count it as upper cylinder lubricant. The worst you'll get is some extra smoke. Now, if you ran straight 50:1 you could end up with fouled plugs.

                  Comment


                  • #10
                    Originally posted by 8v-of-fury View Post
                    Not only that, we winterize our outboards on a 25:1 tank.. 2 stroke or not, they get it. The I/O's get a HEFTY dose of fogging oil too, unless EFI.

                    If anything, I'd actually run it on a 50:1 for the first bit.. lol Lubrication has never killed an engine, truth.
                    OMC found they had far fewer warranty claims for preignition damage after they reduced the ratio from 24:1 to 50:1. Less carbon build up on the piston crown and head. Granted that was before the TCW oils were in wide use. If bearings roll smoothly using 50:1 they aren't going to roll any smoother with 24:1.
                    But people can run whatever they want, it is their engine

                    Comment


                    • #11
                      Good move! No really it is since engine has not been run in awhile...it will supply much needed upper cylinder lubrication and help clean fuel injectors. I would not dilute it.

                      Comment


                      • #12
                        I run 2-cycle mix in my 4-cycle engines all the time . . . for things that I don;t run that often, as it continually lubricates the intake and combustion chamber, etc. As a matter of fact, the way to fog an MPI engine for layup is to run a 10:1 mix of gas/2-cycle oil.
                        Best regards, Ted . . . . Cape Cod, MA

                        Formula 330 Sun Sport, O'Day Mariner Sail #3224, Sunfish
                        Past Boats: Catalina 22 Sail #10531, Formula 242 Sun Sport
                        Twin Mercruiser 7.4 LX MPI (0F802036, 039), Bravo 3's (0F806198, 199), Mercury 7.5 HP (1969), Johnson 4.5 HP (1980)

                        My Boating Web Pages: http://www.tpenfield.com

                        Member of the Month - February 2013

                        Comment


                        • #13
                          The SELOC Mercruiser book actually recommends using mixed fuel to winterize, it was news to me when I read it. Like the other posts say, maybe just some extra smoke.

                          Comment


                          • #14
                            Originally posted by ctrobk View Post
                            The SELOC Mercruiser book actually recommends using mixed fuel to winterize, it was news to me when I read it. Like the other posts say, maybe just some extra smoke.
                            It could be considered Mosquito Control

                            Comment


                            • #15
                              Sign up today
                              FWIW - I find that the 50:1 2-cycle mix does not really smoke much, if any. Probably has something to do with the full exhaust stroke of the 4-cycle.
                              Best regards, Ted . . . . Cape Cod, MA

                              Formula 330 Sun Sport, O'Day Mariner Sail #3224, Sunfish
                              Past Boats: Catalina 22 Sail #10531, Formula 242 Sun Sport
                              Twin Mercruiser 7.4 LX MPI (0F802036, 039), Bravo 3's (0F806198, 199), Mercury 7.5 HP (1969), Johnson 4.5 HP (1980)

                              My Boating Web Pages: http://www.tpenfield.com

                              Member of the Month - February 2013

                              Comment

                              Working...
                              X