• If this is your first visit to the iboats.com Boating Forums, be sure to check out the FAQ. To post a question or comment, begin by signing up. To start viewing messages, select the forum that you want to visit from the selection below.


Announcement

Announcement Module
Collapse

Help Tip: If you have a question that has not been answered to your satisfaction in the archives, it is always best to start a new thread of your own. By starting your own thread, you will receive the maximum number of views by forum members.

Below are some additional forum policies in hopes of all iboats members will follow, Thank you.

1. Please do not reply to old topics or hijack existing topics. Old topics of a technical nature are like a library book, Please do not write in them.

2. Old topics should be considered archives and used for reference only. Please do not reply to them.

3. Do not take over someone else’s topic (aka hijack) with your own question, even if it is similar. If you have a question that has not been covered to your satisfaction in the archives, it is always best to start a new topic of your own.

4. If you have a question for the original poster (OP) and the topic is over 30 days old, send the OP a PM, he may not even visit the forums any longer, or may not notice your question in the old topic.

5. By starting your own topic, you will receive the maximum number of views by forum helpers that may not even notice your question when it’s posted at the end of someone else’s topic. And those answers will be specific to your particular issue.

6. Please do not post to topics that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any topic that remains inactive for that long should be considered "dead". It is especially confusing when there is an entirely new question posted to an old topic.

7. Posting at the end of any topic is considered to be hijacking the original posters topic which in turn subjects the topic to be closed if it continues to happen thus not making it fair to the original poster in the future had for some reason he/she needed to return for additional information or provide an update of the problem solved which is always welcomed within a reasonable amount of time frame.

8. Please note that you should see a red banner pop up near the bottom of each inactive topic asking you not to reply to old topics. The Red banner will read: Please note this topic has been inactive for 90 days. For the best results, please start a new topic.

Thank you all in advance for doing your part in helping iboats run a smooth ship.

Additional forum rules linked below.
http://forums.iboats.com/forum-rules-guidelines-405/
See more
See less

high test gas without Ethanol - Will it run hotter ?

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts


  • high test gas without Ethanol - Will it run hotter ?

    Good day y'awl, Just filled up a supply of gas/oil mix for my cottage outboard motor at a country gas station (Ultramar - Canada) and was supprised to see Ethanol 10% in regular and mid range gas ... but not in high test, this is new to me at that particular station (if not in my region in Canada). So I filled up with high test since it will take several months prior to burning it all and I prefered not having Ethanol in the mix for that reason. Question is: Will the motor run hotter with hight test gasoline ? Tx
    a bad day fishing is better than a good day at work ..


  • #2
    Re: high test gas without Ethanol - Will it run hotter ?

    [QUOTE=pecheux;3226504 Will the motor run hotter with hight test gasoline ? Tx[/QUOTE]

    No. You will not be able to tell the difference.

    I'll also add that if you want to determine if the gas REALLY has ethanol in it you'll have to test it to verify.

    http://www.eaa.org/autofuel/autogas/test_kit.asp


    Cheers,


    Rick
    ----------------------------------------------------------------------------------
    I use xxx oil and have never had a problem........
    This post was created with OpenSuSE x64 Linux!

    Comment



    • #3
      Re: high test gas without Ethanol - Will it run hotter ?

      High test gas is not "better" gas. It is not needed for your engine and ethanol blended fuel, contrary to popular belief does not turn to sludge in a couple weeks, two months, six months, or a year. How do we know this? Been using the stuff since 1997. Add Stabil or SeaFoam and go boating. As for running hotter -- NO! Premium fuel burns slower than regular since it's main purpose in life is to prevent detonation in high compression engines (which yours is not -- even though we don't know what kind it is). There is zero benefit to burning premium fuel -- except it empties your wallet quicker.

      Comment



      • #4
        Re: high test gas without Ethanol - Will it run hotter ?

        There is zero benefit to burning premium fuel -- except it empties your wallet quicker.
        Absolutely true unless you're running a higher than normal compression ratio engine. ( that the manufacturer indicates MUST be operated on "Premium" fuel)
        ----------------------------------------------------------------------------------
        I use xxx oil and have never had a problem........
        This post was created with OpenSuSE x64 Linux!

        Comment



        • #5
          Re: high test gas without Ethanol - Will it run hotter ?

          Ethanol will in time, also damage any component containing rubber. Alcohol will suspend its own weight in water and for that reason should not be stored for long periods without a stabilizing additive, or in a partially full container or in a container without a tight cap......especially in moist environments. In our remote Canadian camps we shy away from fuel containing alcohol/ethanol. Our motors are pre 1990 and rubber compositions can be damaged. Stabilizing additives are not always available or properly applied, they can add to our overhead as well.
          a promise made is a debt unpaid

          Comment



          • #6
            Re: high test gas without Ethanol - Will it run hotter ?

            Ethanol will not hold its own weight in water in an E-10 fuel mix.

            There is no stabilizer that will stop phase separation....well except for more ethanol.

            Comment



            • #7
              Re: high test gas without Ethanol - Will it run hotter ?

              Originally posted by Timguy View Post
              Ethanol will in time, also damage any component containing rubber. Alcohol will suspend its own weight in water and for that reason should not be stored for long periods without a stabilizing additive, or in a partially full container or in a container without a tight cap......especially in moist environments. In our remote Canadian camps we shy away from fuel containing alcohol/ethanol. Our motors are pre 1990 and rubber compositions can be damaged. Stabilizing additives are not always available or properly applied, they can add to our overhead as well.
              Thank you for your feedback, this seems to apply to this one litle old 6 hp motor kit sitting at the dock full time with the tank in the boat around the clock for 4 months or so, in a Canadian northern environement. Fortunatly I do have an OMC metal gas tank without a venting screw so I would presume little air/gas contact to occur.
              a bad day fishing is better than a good day at work ..

              Comment



              • #8
                Re: high test gas without Ethanol - Will it run hotter ?

                Originally posted by ondarvr View Post
                Ethanol will not hold its own weight in water in an E-10 fuel mix.

                There is no stabilizer that will stop phase separation....well except for more ethanol.
                I am not sure I understand this technicality ??
                a bad day fishing is better than a good day at work ..

                Comment



                • #9
                  Re: high test gas without Ethanol - Will it run hotter ?

                  Gday,Every outboard mechanic I ask re putting ethanol 10% fuel in 2 stroke answers NO.
                  Only recently Australia has converted the old 91 octane to 10% ethanol.Forcing most of us to go to the more expensive 95 and 98 octane.$$$$ sux.
                  "I hear and I forget. I see and I remember. I do and I understand."

                  Haines Hunter V17C Half Cabin. Mercury V6 135 HP 1988.

                  Comment



                  • #10
                    Re: high test gas without Ethanol - Will it run hotter ?

                    And every mechanic on the planet blames ethanol for every engine ailment known to man. Isn't it amazing that we can store classic cars, boats, motor homes, lawn tractors, mowers, etc., for six months at a time during our long winters and they run just fine in the spring -- provided Stabil or a similar product is used. If high moisture is an issue for you -- install a water separating fuel filter and go boating. Again -- there is a bunch of hogwash being spread here.

                    Comment



                    • #11
                      Re: high test gas without Ethanol - Will it run hotter ?

                      I appreciate your ideas, but I have run 2 remote camps in NW Ontario since 1972 and never any fuel related problems until recent years with "modern" fuel formulations. I am not new to this business. I know how to make my equipment last.
                      a promise made is a debt unpaid

                      Comment



                      • #12
                        Re: high test gas without Ethanol - Will it run hotter ?

                        Originally posted by pecheux View Post
                        I am not sure I understand this technicality ??

                        The more ethanol in the blend, the more water can be absorbed before any phase separation takes place, so this about the only thing that can help to prevent it. Other additives make vague claims as to what they may do, but all they can really help with is keeping the gas fresh for a longer period of time.

                        Comment



                        • #13
                          Re: high test gas without Ethanol - Will it run hotter ?

                          Originally posted by Timguy View Post
                          I appreciate your ideas, but I have run 2 remote camps in NW Ontario since 1972 and never any fuel related problems until recent years with "modern" fuel formulations. I am not new to this business. I know how to make my equipment last.

                          During the transition to "new fuels" (which took place about 20 years ago in my area) there can be many issues as the build up of gunk from the old fuel is flushed from the system by the ethanol, which is a very good system cleaner. Everything from the fuel trucks to the gas stations and your gas cans will have junk in them, this will all be cleaned out by the new fuel and find its way into your motor if the correct filter isn't used. Plus if your motors are all pre 90s models, the rubber parts were very old before the ethanol ever got to them, and depending on how old they are they may be pre-ethanol models. Any motor that old should have had most of the components that may have been susceptible to ethanol replaced a long time ago if good maintenance practices have been performed on them.

                          Is the new stuff great…..no…..is it the evil monster many make it out to be…..again the answer is no.

                          Comment



                          • #14
                            Re: high test gas without Ethanol - Will it run hotter ?

                            Thank you all for your informative feedback. Considering the pros and cons and considering this small boat will only use about 10 to 15 gallons of gas mix within approx 4.5 months in a very damp environement, it would seem to me after reading the multiple opinions that I may have done the right move by using non-ethanol gas, plus additional cost $ is no issue. Main question regarding the motor running hotter with high test gas has been answered.
                            Cheers.
                            a bad day fishing is better than a good day at work ..

                            Comment



                            • #15
                              Re: high test gas without Ethanol - Will it run hotter ?

                              Originally posted by pecheux View Post
                              Thank you all for your informative feedback. Considering the pros and cons and considering this small boat will only use about 10 to 15 gallons of gas mix within approx 4.5 months in a very damp environement, it would seem to me after reading the multiple opinions that I may have done the right move by using non-ethanol gas, plus additional cost $ is no issue. Main question regarding the motor running hotter with high test gas has been answered.
                              Cheers.
                              If you can get NON-ethanol gas (and you decide to believe it is truly ethanol free), then run it if it makes you feel better.

                              Around here in the NW, it's very hard (and inconvenient) to find non-ethanol gasoline. I have run it (E10) in everything I own (except my airplane) and have never had a problem....

                              My boat has a 44 gallon tank. I store it (inside) for the winter with less than 1/4 tank. I don't use STABIL or any other snake oil in the fuel and just fill it up in the spring.

                              I have had the tank out and have NEVER found water (or anything else) in the tank.

                              Do that which makes you feel good.....

                              ymmv........


                              Rick
                              ----------------------------------------------------------------------------------
                              I use xxx oil and have never had a problem........
                              This post was created with OpenSuSE x64 Linux!

                              Comment


                              Working...
                              X