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Hot Rods Ethanol Shield?

Discussion in 'The Hokey Ass Message Board' started by JD Miller, Sep 26, 2023.

  1. JD Miller
    Joined: Nov 12, 2011
    Posts: 2,116

    JD Miller

  2. stanlow69
    Joined: Feb 21, 2010
    Posts: 7,348

    Member Emeritus

    I have run ethanol in my 427 ever since it first came out and in everything I own. My lowest milage vehicle has 160 thousand miles on it. 240,000 with the most. No shield being used.
  3. gimpyshotrods
    Joined: May 20, 2009
    Posts: 23,071


    Been running E10 since it was introduced.

    I have had zero issues.

    Cars, trucks, bikes, power equipment, all inclusive.

  4. '29 Gizmo
    Joined: Nov 6, 2022
    Posts: 624

    '29 Gizmo
    from UK

    Traditional fuel stabilizer is 99.99% isopropyl alcohol (also sold as brake cleaner). Save yourself a fortune and buy it in bulk.
  5. Mike VV
    Joined: Sep 28, 2010
    Posts: 2,956

    Mike VV
    from SoCal

    Don't need any protection at 10% ethanol.
    When we get to E85...then yeah, we'll need some metal and rubber protection. Some rubber is already set up for its ethanol protection.

    mad mikey likes this.
  6. FishFry
    Joined: Oct 27, 2022
    Posts: 293


    It's actually not the fuel per se, but bacteria induced acid, that messes with your system. The bacteria converts alcohol (ethanol) into acetic acid, this leads to rust formation in the tank and in the entire fuel system.

    Since we can't get anything but E10/5 here in Germany since more than a decade, I use this here.


    It claims to work as a lead replacement, anti corrosion agent, cleaner, stops forming bacteria, and over all fuel stabilizer, by preventing gas and alcohol to separate.

    Works fine - no issues so far. Not sure if it is available in the US though.
    Moriarity likes this.
  7. Cooder2
    Joined: Jun 3, 2012
    Posts: 97

    from Tejas

    Here in Tejas we have the occasional gas pump that sells pure gasoline, no corn likker
    alanp561 and FishFry like this.
  8. overspray
    Joined: Jan 14, 2003
    Posts: 1,414


    So far, it appears that you guys in warmer southern states haven't experienced problems with ethanol fuels in older carbureted engines. Last year the temperature swings, here up north, were from 107F to minus 37F. I quit using ethanol fuels in my small engines and older carbureted cars because of moisture problems, corrosion in carbs, phase separation of the fuel, and loss of octane. In extreme cold, excess water absorbed by the ethanol can freeze up usually in your fuel filter or float bowl. The ethanol gas can really corode and ruin small engine carbs. As for this addative, it's probably "snake oil" as described. This article describes the pros and cons of ethanol blended fuel.
    Last edited: Sep 27, 2023
  9. lostn51
    Joined: Jan 24, 2008
    Posts: 1,952

    from Tennessee

    Funny you should say it that way because Henry Ford designed his motors to run on corn likker. I was reading somewhere that back when the automobile was first being produced there were not a lot of gas stations per se so the early models were designed to run damn near anything that you could make to put in it. Heck Popcorn Sutton used to put his likker in his A Model whenever he was out of gasoline while trying to get away from his still site. But if it’s just 99.99% isopropyl alcohol then that’s pretty much the heads off the first of the run of shine.
    But here in Tennessee you can make your own fuel but you have to make it in steel still “so it’s not consumable” for your farm implements like old tractors and stuff. It’s an old law that still on the books and I do have a friend who’s father did it for his old tractors and the ATF used to come inspect it eons ago but not sure if they do it anymore. But my friend said that his pops would change the worm and pot out to copper so he could have some sipping whiskey for the winter months lol
  10. '29 Gizmo
    Joined: Nov 6, 2022
    Posts: 624

    '29 Gizmo
    from UK

    Yep... its why they ran such low compression ratios, manualy adjustable engine timing, and mixture adjustable from inside the cab, gravity fed and no rubber in the fuel circuit.

    Always makes me chuckle when someone asks if a model A is ethanol compatable.
    Cooder2, mad mikey, 62rebel and 3 others like this.
  11. Ned Ludd
    Joined: May 15, 2009
    Posts: 4,936

    Ned Ludd

    Low compression ratios for the sake of ethanol? Ethanol allows anything up to about 16:1! — or, in the case of a compression-limited side-valve engine, quite an extreme degree of supercharging.
    gimpyshotrods likes this.
  12. denis4x4
    Joined: Apr 23, 2005
    Posts: 4,141

    from Colorado

    Been an advocate for non ethanol gas for years. I get home delivery for my 300 gallon gravity feed tank. We have lots of small engines and old cars. However, my wife's late model OT car is sitting at the dealership waiting for a new fuel pump and filter. Got a lecture from the service manger that vehicles built after 2020 don't like non ethanol gas.
    Cooder2 likes this.
  13. If ya drive em ya don’t have as many issues if any
  14. squirrel
    Joined: Sep 23, 2004
    Posts: 54,960


    Leaving a car sit for years in Arizona with E10 in the tank will result in a huge mess...I expect this process happens much faster up north with increased cold and humidity.

    Down here we get to drive year round, and if you do drive them regularly, no issues with ethanol in the fuel.

    If you do have to let it sit for months on end, draining the system and running it dry would probably be the best approach, eh?

    Apparently no one has experience with that product. So we'll never know.
  15. BamaMav
    Joined: Jun 19, 2011
    Posts: 6,507

    from Berry, AL

    Only problem I’ve had with e5 or e10 has been with small engines that sit a week or two at a time. You have to keep any stored gas in a sealed container or it will absorb water from the air. That’s why the small engines give problems, their fuel tanks are open vented, moisture will get in through those vents no matter how tiny. Modern vehicles with sealed fuel systems don’t run into these problems as much if at all. I run pure gas in my car, but if I’m in an area where I can’t get it, I will use e fuel, then when I get home I’ll fill back up with pure gas.

    Some of the small engine manufacturers recommend using Sta-bil and/ or Seafoam in the fuel. I use it, can’t say it works or not. Must be something to it or the manufacturer wouldn’t recommend using it.
  16. JD Miller
    Joined: Nov 12, 2011
    Posts: 2,116

    JD Miller

  17. 1971BB427
    Joined: Mar 6, 2010
    Posts: 8,527

    from Oregon

    Ever since they began adding ethanol to gasoline Stabil has changed their formula to work with ethanol additive gas. There are older Stabil bottles that are still around, so you need to check the labels to ensure it's listed as ethanol rated Stabil.
    I started using the ethanol rated Stabil in all my hotrods and small engines for winter storage years ago, and it works. I never have any issues after long storage since I switched to the new Stabil, so wont be trying this stuff.
    mad mikey and Truckdoctor Andy like this.
  18. Last edited: Sep 27, 2023
  19. Almostdone
    Joined: Dec 19, 2019
    Posts: 878


    Yep, if you drive them pretty often E10 is no big deal. If not, big deal. One of the vehicles I take care of is in a museum (1935 DB truck) and only gets driven once every 1-3 years. I use non-ethanol fuel in it and it starts in about 5 turns every time. I normally use non-ethanol in my avatar, but on road trips I use whatever is at the pump…. nearly 3,500 miles on it this summer (not as good as some of the Drag Week competitors I hear!).

  20. Budget36
    Joined: Nov 29, 2014
    Posts: 12,715


    Regarding small engines, I had a rototiller with a B&S engine some 15 or so years ago that wouldn’t start. I took the carburetor off and apart, it was a ball of corrosion, just chock full of white fuzzy stuff. The was a casted carburetor.
    Had no clue about ethanol, etc.
    But don’t seem to have issues with a mower I bought two years ago, it has “plastic “ carburetor. I did have to take it apart this year and rinse it out in lacquer thinner,,been fine this year.
    I’d guess maybe the “plastic” inhibits corrosion of parts?
    I don’t know, but this thread has me wondering is all.
  21. squirrel
    Joined: Sep 23, 2004
    Posts: 54,960


    I expect that plastic does inhibit corrosion....metal corrodes, plastic doesn't. That's one way to fix the problem!
    Truckdoctor Andy likes this.
  22. Budget36
    Joined: Nov 29, 2014
    Posts: 12,715


    Maybe Holley, etc will come around;)
  23. Mr48chev
    Joined: Dec 28, 2007
    Posts: 33,337


    JD Miller hit on one serious point of ethanol. It does not hold up in a vented straight to the air gas tank. I've got a 35 gallon stainless tank on the back of my 71 that has some really rotton gas in it that has turned to varnish and an F150 tank that I was thinking about running on my 48 because of it's size that smells like varnish.
    I use non ethanol in my small engines even though I pay a stiff price for it here.
    alanp561 likes this.
  24. Budget36
    Joined: Nov 29, 2014
    Posts: 12,715


    I wonder if that was why automakers moved to plastic tanks? I’d always assumed it was a cost thing where they could save in manufacturing.
  25. Weight and safety.
  26. Budget36
    Joined: Nov 29, 2014
    Posts: 12,715


    Makes sense I guess. Here I thought they were forward thinking;)
  27. Stabil! No problems for years now, with all my combustion engines. FACT!
  28. Both!
    They have a lot of plastics from which to choose. They can pick one that is impervious to any solvent and the jigs and tools are low-cost to produce.
    In the early 2000s, I had a factory turbo car that had a plastic intake manifold.
    Budget36 likes this.
  29. Dang I wish I had thought about making this stuff.

    I need to start being more dishonest

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