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2G Question for the 2g awd E85 users

Posted by v8s_are_slow, Aug 13, 2020

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  1. v8s_are_slow

    v8s_are_slow Proven Member

    2,567
    125
    Joined Sep 30, 2002
    Panama City, Florida
    Just wondering if any of you guys that use it have any issues with your fuel looking like this if it sits for a bit. I'm wondering what y'all do for the sealing rings on top of the tank and if they would possibly be an issue, or if it's the seals I'm using for my fuel sumps on bottom of the tank. I have new seals for the rings on top but trying to diagnose what's causing it and wouldn't think the fuel would be hitting the rings enough to sit there and deteriorate them. Trying to remedy this problem though. Mine are pretty old so maybe that's the issue but still wouldn't think they'd be resistant to that fuel? Where you guys at on this?

    upload_2020-8-13_11-1-30.png
     

    2K  20

    1998 Mitsubishi Eclipse GST
    10.949 @ 129.77 · 2G DSM
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  2. jed344

    jed344 Supporting VIP

    957
    145
    Joined Jan 10, 2008
    Waterville, Iowa
    Never had that issue. I have replaced my hanger sealing ring though. How long did the fuel sit in the tank?
     

    1K  38

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  3. v8s_are_slow

    v8s_are_slow Proven Member

    2,567
    125
    Joined Sep 30, 2002
    Panama City, Florida
    Maybe a month or so. I'm going to assume and HOPE maybe it's just the rings because they're pretty old. Just didn't know if this was a common issue or not.
     

    2K  20

    1998 Mitsubishi Eclipse GST
    10.949 @ 129.77 · 2G DSM
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  4. Mello

    Mello Proven Member

    1,161
    338
    Joined Jul 4, 2003
    Albuquerque, New Mexico
    Some materials used for making seals are volatile with E85 including E85 vapor. The seals do not have to be submerged to deteriorate.
     
    v8s_are_slow likes this.
  5. v8s_are_slow

    v8s_are_slow Proven Member

    2,567
    125
    Joined Sep 30, 2002
    Panama City, Florida
    That's good to know.
     

    2K  20

    1998 Mitsubishi Eclipse GST
    10.949 @ 129.77 · 2G DSM
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  6. Mello

    Mello Proven Member

    1,161
    338
    Joined Jul 4, 2003
    Albuquerque, New Mexico

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