What's This Substance?

Discussion in 'The BS Topic' started by GoldenOne7710, Nov 5, 2017.

  1. GoldenOne7710

    GoldenOne7710 Veteran Member Lifetime Gold Member

    4,101
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    Jun 23, 2004
    Athens, GA
    Found it while I was changing the oil and filter in my truck. I see that I now have a small oil leak. It wasn't there the last time I changed the oil. But hey, it's got 180K miles on a 15 year old truck. Can't expect them to not spring a leak sooner or later.

    But anyway, this is what I can't figure out. There's no fluid that resembles this... 20171105_205629.jpg
    It's the color and consistancy of anti-seize. No reason it should be mixed in with an oil leak. I inspected both the old filter and oil that I drained and didn't see anything metallic. Keep in mind, I've serviced thousands of vehicles in my life and never came across this before.
    20171105_165958.jpg
     
    Last edited: Nov 5, 2017
  2. Knuckle Dragger

    Knuckle Dragger Moderator Staff Member Lifetime Gold Member

    12,840
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    Nov 2, 2002
    Waddell AZ
    I've never seen that. Any chance it's something thrown up from the road?
     
  3. GoldenOne7710

    GoldenOne7710 Veteran Member Lifetime Gold Member

    4,101
    108
    Jun 23, 2004
    Athens, GA
    I honestly don't know...But it's nowhere else on the undercarriage. The rest of the transmission and transfer case is clean as a pin. I even popped out that round inspection tab on the bottom of the bell housing and looked up inside at the flex plate and torque converter. It's dry up inside there.
     
  4. ol' grouch

    ol' grouch Veteran Member

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    Jul 4, 2013
    Evansville, In.
    Possibly rain water mixing with oil from the leak.
     
  5. budro6968

    budro6968 Veteran Member

    1,215
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    Apr 2, 2016
    Jax Florida
    Check your rad cap see if anything has accumulated at the top of rad and cap.
     
  6. dcozzi

    dcozzi Veteran Member

    2,177
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    May 1, 2002
    Phoenix, AZ
    Anti-seize seeping off the drain plug?
     
  7. GoldenOne7710

    GoldenOne7710 Veteran Member Lifetime Gold Member

    4,101
    108
    Jun 23, 2004
    Athens, GA
    No, but I've been brainstorming since yesterday and I believe I know where it's coming from. I changed this transmission about 3 years ago. I remember taking the old one out was a real PITA. It was seized on the dowels and I played hell getting it broken loose to come out.

    I remember now coating the dowels as well as all the bell housing bolt threads with anti-seize in case it ever had to come back out. So there's my smoking gun.

    That really threw me for a loop.
     

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