fuel question

  • live2cast
    waukesha,wi
    Posts: 98
    October 20, 2011 at 10:10 pm #1320245

    I’m storing my 1850 for the first time. Should I fill the tanks full or leave them empty as possible. Yes I will be using marine stable.

    rod-man
    Pine City, MN.
    Posts: 1279
    October 20, 2011 at 10:14 pm #1003012

    keep in mind
    fuel expands as it gets colder
    too full and it can over flow

    Brian Hoffies
    Land of 10,000 taxes, potholes & the politically correct.
    Posts: 6843
    October 20, 2011 at 10:18 pm #1003013

    Won’t matter if they are full or not. Treat the gas and run the motor for a few minutes and you will be good to go. Personally I run mine down to a 1/2, add treatment and run it to 1/4. Then in the spring fill with fresh gas.

    live2cast
    waukesha,wi
    Posts: 98
    October 20, 2011 at 10:19 pm #1003014

    Never thought of that, thanks.

    bassn7
    Bruce,WI
    Posts: 776
    October 20, 2011 at 10:37 pm #1003015

    I have run stabil for the last month as I never know when it will freeze up and stop fishn, I have a 48gal tank so I try and let it run down and in the spring start w new fuel!
    I can’t afford to store that much gas all winter and then have it spoil possibly!
    Stan

    tom_gursky
    Michigan's Upper Peninsula(Iron Mountain)
    Posts: 4751
    October 20, 2011 at 11:01 pm #1003019

    I fill my 1750 & 115 Yammy with no ethanol premium before my last trip to P-4 and put in a can of Seafoam (November)…I usually burn less than a 1/2 tank running the upper pool…winterize…she runs just fine every March when I am back on the Fox…

    little-t
    Plymouth WI
    Posts: 314
    October 20, 2011 at 11:14 pm #1003020

    To be honest with you– I’ve never used any of that stuff. My boat goes into storage in early Dec and comes out in early March. Haven’t had a problem in 30 yrs. Just my opinion.

    mark-bruzek
    Two Harbors, MN
    Posts: 3867
    October 21, 2011 at 1:44 am #1003048

    x2 Dont use and “snake oil” here. just run the carbs dry on all my seasonal toys and try to have low fuel left in them so I can fill with new fuel the next use. -Mark

    tom_gursky
    Michigan's Upper Peninsula(Iron Mountain)
    Posts: 4751
    October 21, 2011 at 2:11 am #1003063

    Quote:

    To be honest with you– I’ve never used any of that stuff. My boat goes into storage in early Dec and comes out in early March. Haven’t had a problem in 30 yrs. Just my opinion.

    On a 4 stroke? Are you burning ethanol?

    little-t
    Plymouth WI
    Posts: 314
    October 21, 2011 at 3:09 am #1003067

    No Tom– 115 OPTI 2 stroke oil injected.

    freedomrock
    Posts: 75
    October 21, 2011 at 10:21 am #1003081

    Im in the same boat – pun intended? New boat, 40 gallon tank. I talked to a service guy and he recommended filling it up because it reduces the amount of room in the tank where moisture can form. With that said, I have a problem dropping a buck-forty to fill it up and let it set.

    Mocha
    Park Rapids
    Posts: 1452
    October 21, 2011 at 10:39 am #1003083

    I run SeaFoam in the fuel for the last month of the season and then fill the tank and add additional SeaFoam. Never and I mean Never had a problem for 30 years. IMHO

    PS:I also run only premium in all my toys.

    Wade Boardman
    Grand Rapids, MN
    Posts: 4453
    October 21, 2011 at 11:15 am #1003087

    Quote:

    Ingredients

    40-60%: Pale Oil (A petroleum lubricating or process oil refined until its color, measured by transmitted light, is straw to pale yellow. )

    25-35%: Naphtha (Naptha is a common name for the industrial solvent Petroleum Ether.)

    10-20%: IPA (isopropyl alcohol)

    Quote:

    Automotive

    Isopropyl alcohol is a major ingredient in “gas dryer” fuel additives. In significant quantities, water is a problem in fuel tanks, as it separates from the gasoline, and can freeze in the supply lines at cold temperatures. It does not remove water from gasoline; rather, the alcohol solubilizes water in gasoline. Once soluble, water does not pose the same risk as insoluble water as it will no longer accumulate in the supply lines and freeze. Isopropyl alcohol is often sold in aerosol cans as a windscreen de-icer. Isopropyl alcohol is also used to remove brake fluid traces from hydraulic braking systems, so that the brake fluid (usually DOT 3, DOT 4 or mineral oil) does not contaminate the brake pads, which would result in poor braking.

    As best as I can find, here are the ingredients in seafoam. Also here is what Isopropyl alcohol does to water in gas.

    FWIW: in my Verado and now my Yammi F150 I run 87 octane. I was told by my Verado mechanic that running premium does NOTHING but hurt your wallet.

    Here is an excerpt from the Yamaha Manual.

    Quote:

    Recommended Gasoline: Regular unleaded gasoline with a minimum octane rating of 86 (Pump Octane Number)

    Verado recommended Gasoline

    Quote:

    Recommended Fuel 87 octane/up to 10% ethanol

    Here’s a link to what Mercury recommends for Verado Storage.

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