Is E-85 corrosive?

Discussion in 'E85 Technical Forum' started by toofastforyou, Nov 12, 2017.

  1. toofastforyou

    toofastforyou
    Expand Collapse
    2FAST4U

    Joined:
    May 25, 2001
    Messages:
    4,492
    Likes Received:
    109
    Offline
    I think I read somewhere that E-85 eats up carburetors, fuel tanks, lines etc… Is that true?

    Claude.
     
  2. John Larkin

    John Larkin
    Expand Collapse
    Sublime Master of Turbology

    Joined:
    May 25, 2001
    Messages:
    3,530
    Likes Received:
    168
    Offline
    It will eat rubber that is not designed for it. Otherwise no.
     
  3. Chuck Leeper

    Chuck Leeper
    Expand Collapse
    Moderator
    Staff Member

    Joined:
    May 28, 2001
    Messages:
    11,191
    Likes Received:
    1,068
    Online
    It's hygroscopic.. Attracts water, which in turn, causes rust and...???
     
  4. czimpel

    czimpel
    Expand Collapse
    Boost...gotta get some!

    Joined:
    Aug 16, 2012
    Messages:
    706
    Likes Received:
    133
    Offline
    Methanol is extremely corrosive. Ethanol except as Chuck has stated is not corrosive.
     
  5. Turbo6inKY

    Turbo6inKY
    Expand Collapse
    Short Guy

    Joined:
    Jun 18, 2001
    Messages:
    932
    Likes Received:
    70
    Offline
    This is the issue. As long as you keep cycling fuel through it and don't let it sit and absorb water, E85 is fine.

    But it's a great solvent. So if there's a bunch of crud in your fuel system, it'll strip it off the walls of the tank or the lines, and it ends up in the carb or the injectors. Change your fuel filter after the first few tanks if you switch from gas to E85.

    The rubber it supposedly attacks has usually already been compromised, too. The difference is gasoline will swell a rubber line or gasket that absorbs it, sealing the leak. E85 just runs out through the holes.
     
  6. turbo89

    turbo89
    Expand Collapse
    Well-Known Member

    Joined:
    Apr 11, 2002
    Messages:
    2,053
    Likes Received:
    293
    Offline

    THIS !!!
     
  7. 434nova

    434nova
    Expand Collapse
    Member

    Joined:
    Sep 30, 2013
    Messages:
    599
    Likes Received:
    12
    Offline
    How long does e85 have to sit before it starts to absorb water? Week , month, 3 months ?
     
  8. turbo89

    turbo89
    Expand Collapse
    Well-Known Member

    Joined:
    Apr 11, 2002
    Messages:
    2,053
    Likes Received:
    293
    Offline

    Too many variables .. it can sit for 6 months and absorb 0 .... or it can sit for 2 weeks and absorb ounces

    IF its treated it can sit for a long while with ZERO impact
     
  9. Rafs-T-Type

    Rafs-T-Type
    Expand Collapse
    Not so Senior Member

    Joined:
    Mar 8, 2009
    Messages:
    2,397
    Likes Received:
    225
    Offline
    Which treatments do you recommend?
     
  10. No disintegrations

    No disintegrations
    Expand Collapse
    Active Member

    Joined:
    Dec 27, 2015
    Messages:
    638
    Likes Received:
    47
    Offline
    That would depend on if it sealed off from air and if the air has moisture in it. Humid summertime will be worse than cool dry air. A climate controlled garage would be a nice thing to have in the mix.
     
  11. turbo89

    turbo89
    Expand Collapse
    Well-Known Member

    Joined:
    Apr 11, 2002
    Messages:
    2,053
    Likes Received:
    293
    Offline

    SEAFOAM ... it just plain works ... I avoid un -STABIL ...
     
    • Useful Useful x 1

Share This Page