Page 1 of 5 1234 ... LastLast
Results 1 to 10 of 49
  1. #1
    Platinum Member
    Join Date
    Mar 2002
    Posts
    572
    Location
    Jackson County, Michigan
    Tractor
    Bolens HT-20

    Default Old fuel.....

    It pains me to say this: I have almost 280 gallons of gasoline, 140G in each of two tanks, on my boat that is approaching five years old. The real pain comes from not having used the boat very much (not at all) in that time. At the time it was topped off I added more than the recommended amount of Stabil to the tanks. It was mixed well. I plan to use the boat this year. How can I make sure that it's useable and safe for the engines? Would it have lost it's 'octane' in that time? Can I add octane booster? Not a fan of replacing 280G's of gasoline just-in-case. Would like to be sure first. Any suggestions or recommendations?

  2. #2
    Elite Member whistlepig's Avatar
    Join Date
    Jan 2009
    Posts
    4,267
    Location
    Preble County, Ohio
    Tractor
    Kubota B7800 with FEL

    Default Re: Old fuel.....

    This must be one heck of boat. I would be afraid to go out on one of the great lakes with this gas. I would at least pump some of it out and try it in something else. Like the wife's car.
    I used to do the Hokey Pokey but I turned myself around.

  3. #3
    Platinum Member
    Join Date
    Feb 2004
    Posts
    949
    Location
    15 mi. N. of Winchester VA
    Tractor
    CK30HST

    Default Re: Old fuel.....

    Well, you know (joke) they say there's no fuel like an old fuel...

    Mike

  4. #4
    Platinum Member
    Join Date
    Feb 2012
    Posts
    732
    Location
    Germanton, NC
    Tractor
    Kubota MX5100F IH McCormick Farmall 140, Massey Ferguson 135

    Default Re: Old fuel.....

    Fuel has been in the lines and presumably in the bowl of the carb all this time, so you probably can't hurt anything by trying to crank and run it some. If it runs ok at various throttle settings with enough power you might just not have to waste all that fuel. You might consider a very healthy dose of Seafoam.

    I'd be equally if not more concerned about the crankcase oil assuming you aren't running outboards.

    On the other hand the safest bet and most direct way to recommissioning her is to have the fuel pumped out and replace with fresh. A complete oil change and lube of important linkages etc.

    Don't forget to inspect and replace safety equipment such as your fire extinguishers, flares, radios and life jackets!
    Beware of the barrenness of a busy life....Socrates

  5. #5
    Silver Member
    Join Date
    Sep 2010
    Posts
    164
    Location
    Michigan
    Tractor
    Landini 85F Deere 5425 Ford 1920

    Default Re: Old fuel.....

    Captbob,

    Drain out the old fuel, and run it in the lawn mower. Do not even consider running that gorp out on the lake.
    Every spring and early summer, dozens of folks try to run last years fuel, and end up getting towed in by either a good samaritan, or the coasties.
    Replacing the fuel will be cheaper than the tow bill, time lost, and possible damage to the motor.

    There is no reviving stale gas with additives, or seperating the water out of it, with the latest wonder in a bottle.
    Folks that try, are the reason our Marina(s) are backed up 3 Mos on repairs.

    5 years is a long time for the acids in ethanol blended gas to attack a fuel system, and carb.
    Take a good look at things.

  6. #6
    Veteran Member yelbike's Avatar
    Join Date
    Nov 2011
    Posts
    1,612
    Location
    Near Winnipeg, Mb, Canada
    Tractor
    John Deere 2305, 2320,Z465

    Default

    Must be quite the boat indeed! What about draining only one tank, reuse the gas in your daily driver. Put fresh gas with sea foam to purge out the engine and lines of old stuff. Once you know everything is running good on new gas then try running the old stuff through. If you then have a problem switch back to the new stuff again.
    I'm assuming big fuel tank, big boat, big water. You don't want to get stranded miles away from shore for bad gas. Jmo
    Carefull what you aim for, Aim for nothing and you will achieve it with amazing accuracy.

  7. #7
    Super Star Member Diamondpilot's Avatar
    Join Date
    Jan 2007
    Posts
    15,189
    Location
    Daleville, IN
    Tractor
    Jinma 254/284 Ford 861 Powermaster at work

    Default

    I work on boats for a living and there is no way I would use it in any of my boats or customers.

    Cost of doing business but much cheaper then a $8000 rebuild for a V8 marine engine.

    Chris

  8. #8
    Gold Member
    Join Date
    Apr 2011
    Posts
    265
    Tractor
    Kubota BX 2360

    Default Re: Old fuel.....

    So how old can gas get, before it should be replaced ?
    Is it 1, 2,3 or 4 years ?

  9. #9
    Veteran Member GPintheMitten's Avatar
    Join Date
    Sep 2009
    Posts
    2,289
    Location
    Flushing, Michigan
    Tractor
    Kubota B2620 with BH65 backhoe, Ford 2N

    Default

    Interested in what would be done with the old gas when the marinated pumps it out. Disposal fees beyond the pumping fees? How does one dispose of old gas?

  10. #10
    Silver Member
    Join Date
    Sep 2010
    Posts
    164
    Location
    Michigan
    Tractor
    Landini 85F Deere 5425 Ford 1920

    Default Re: Old fuel.....

    Quote Originally Posted by Guido455 View Post
    So how old can gas get, before it should be replaced ?
    Is it 1, 2,3 or 4 years ?
    Depends.

    Ethanol blended Gas is fine for low compression, low performance motors after 3-4 months.
    The same Gas will raise havoc in 2 cycles, or in higher compression 4 strokes, and quite often, after 6 weeks and depending on conditions it was stored in, can be water contaminated and phase seperated. Plastic storage containers are actually porous, and gas stored in them, should be considered somewhat contaminated after 45 days as a general rule.

    Real Gas, with no corn in it, can be stored for a year, with little noticeable degradation, if stored properly.
    Much longer than a 3-4 months is pushing things though, and especially for Boats, Motorcycles, and other high performance motors.

    A plain old glass pickle jar with a lid, is a wonderfull tool.
    Let any suspect gas sit in the jar overnight, and see what seperates out.

    Either way, for boats heading out on the great lakes, or motorcycles playing in traffic, 2 cycle OPE, keep it fresh as you can, or it can cost you dearly.

    Run the old stuff in the truck, field pumps, and old tractors that could handle distillate. Whoofing brush piles also comes to mind.

Page 1 of 5 1234 ... LastLast

Similar Threads

  1. 30 gallon Fuel Caddy - Change fuel - Cleanout?
    By beltfed in forum Owning/Operating
    Replies: 3
    Last Post: 04-29-2012, 12:55 AM
  2. Replies: 12
    Last Post: 03-28-2012, 11:06 PM
  3. Replies: 6
    Last Post: 10-18-2010, 08:58 PM
  4. Oil & Fuel Century 2535 leaks fuel at fuel filter
    By NealinVA in forum Century & Branson
    Replies: 3
    Last Post: 09-14-2009, 09:49 AM
  5. Kabota G1900 Fuel Pump & Fuel Gauge dead
    By Logie in forum Parts/Repairs
    Replies: 4
    Last Post: 04-06-2009, 08:51 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.