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  • Proedge
    replied
    Here in Canada most marinas sell 94 octane marked boat gas. It's not cheap, but seems to be good for engines.
    Some stations around the province have Marked boat gas at pumps 91 or 94 octane. (marked gas simply means that it's not meant for road use and there are no road taxes on it. You have to sign a form when you buy it saying that you won't put it in a car and use it on the road)

    In a pinch, I'll get 91 octane non-ethanol at a regular Chevron or Shell station. I have the LY6 in my boat, never had any issues with spark plugs or being low on power.

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  • hunter991
    replied
    91 NON Ethanol in every boat i have, old/new doesn't matter.. NO ethanol.

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  • maniacmikes
    replied
    Short story, 2018 Xstar with gdi 6000

    Last spring went down to local marina (only one close to me), asked the dock attendant what type of fuel they are selling, she told me it was 91 octane non-ethanol. Great! fill-er up. I continue to use that marina to fill it up over the next month or two.

    Boat runs fine, everything seems normal, we surf, we wakeboard (50% ballast)- would have never thought anything about it...until I have a friend come out that is an advanced wakeboarder and we load the boat with full ballast + lead etc... and for the first time ever, the boat struggled to get on plane and I actually had to turn on triple tab auto launch (which I have never had to do before).

    Call up the dealer, they send a tech down, he agrees it feels low on power only when ballast is full. Hook it up to computer and find the timing advance on the ECM is down 50%. He asks what type of fuel I have been using and before I tell him, I go back to the marina and talk to the manager. Manager this time tells me they buy the cheapest fuel possible. It all made sense at this point, and I resorted to filling her up by 5gal jug for the rest of the season...but it does take a while for the computer to re-calibrate.

    So, yeah, maybe the boat runs fine on whatever fuel you put in it...your computer is going to compensate ...but maybe it could be better

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  • lakedrum03
    replied
    Originally posted by Double D View Post
    That engine has never seen 87 since I have owned it.




    It was hard to find a couple years ago but has expanded greatly since then. I get it 4 blocks from my house but check out this web site to find it local.

    https://www.pure-gas.org
    Agreed. unfortunately, none of them are on my way to the lake, so I have to go out of my way. First world problems......

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  • XT21LakeAnna
    replied
    I run 90 ethanol free, most of the marinas on LKA only offer one grade.

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  • HDAVIS
    replied
    Nothing but 89 no ethanol in my 1996 MC 190. Never ETOH. Ever.

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  • Double D
    replied
    Originally posted by BudmanV24 View Post
    I've always had a theory that everyone who complains about the ly6 eating spark plugs is caused by them running 87 in an engine designed for 91.

    That engine has never seen 87 since I have owned it.

    Originally posted by lakedrum03 View Post
    Where are you buying your rec 90??

    It was hard to find a couple years ago but has expanded greatly since then. I get it 4 blocks from my house but check out this web site to find it local.

    https://www.pure-gas.org

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  • BudmanV24
    replied
    Originally posted by Double D View Post
    Just started using Rec90 non-ethanol in my 08 LY6 starting with my winterization last year.
    I've always had a theory that everyone who complains about the ly6 eating spark plugs is caused by them running 87 in an engine designed for 91.

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  • SS LS1
    replied
    Originally posted by lakedrum03 View Post
    Where are you buying your rec 90??
    We buy Rec 91 100% gasoline and many local stations. Often its dispensed off to the side at a different pump where they may sell kerosene or racing gas also.

    Have also seen it locally at larger fuel stations that have separate pump bays for semi trucks. Have a look at some of those near interstate interchanges.

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  • lakedrum03
    replied
    Originally posted by Double D View Post
    Just started using Rec90 non-ethanol in my 08 LY6 starting with my winterization last year.
    Where are you buying your rec 90??

    Leave a comment:


  • waterskier360
    replied
    I got water in the fuel from 1 marina . boat would barely run . had to pump the crap out flush the tank and lines . It really sucks .


    Sent from my iPhone using Tapatalk

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  • Double D
    replied
    Just started using Rec90 non-ethanol in my 08 LY6 starting with my winterization last year.

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  • LostDriver669
    replied
    Originally posted by gwozhog View Post
    Have always run 87 but will never use fuel from a marina. Seen to many boats get bad fuel over the years.
    Hmm, thanks for that tidbit. Used marina fuel a few times as I had to, but usually it’s a station since I trailer. Have a few jerry cans for our longer trips this year.

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  • gwozhog
    replied
    Have always run 87 but will never use fuel from a marina. Seen to many boats get bad fuel over the years.

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  • waterskier360
    replied
    What fuel?

    Its more important to use quality fuel even if it is a blend with some corn . Read the Ilmore manual about choosing top tier fuel suppliers to keep your valve train clean. I run the last 2 tanks of the season with straight 87 (all i can get here) for winter storage only. The generic trucks that visit no-name gas stations , big box stores etc. Do not have the quality detergents for long engine life . 93 octane may be necessary with the 5.7 full ballast and a boat load of people to get to wakeboard speed .
    Whats the point in buying a $100k machine and feeding it cheap fuel that will cause damaging deposits in your valve train .


    Sent from my iPhone using Tapatalk

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