Best oil drain plug seal?
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Best oil drain plug seal? in Past Cadillac Vehicle Discussion; My '96 DeVille's sump drain plug is leaking badly. Before I drain the oil and replace whatever seal it has, ...
  1. #1
    cormorant is offline Cadillac Owners Member
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    Best oil drain plug seal?

    My '96 DeVille's sump drain plug is leaking badly. Before I drain the oil and replace whatever seal it has, would like to know what has been found to be best part for the job: O-ring, red fiber washer, aluminum washer, metal crush washer?


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  3. #2
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: Best oil drain plug seal?

    Quote Originally Posted by cormorant View Post
    My '96 DeVille's sump drain plug is leaking badly. Before I drain the oil and replace whatever seal it has, would like to know what has been found to be best part for the job: O-ring, red fiber washer, aluminum washer, metal crush washer?
    -------------------------
    the correct drain plug has a rubber seal built in -
    no additional seal or gasket should be necessary -

  4. #3
    rodnok01's Avatar
    rodnok01 is offline Cadillac Owners Master
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    Re: Best oil drain plug seal?

    I picked up a replacement at Advance that was of very good quality and stopped my leak.

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Best oil drain plug seal?

    The Help! racks at parts stores have various sizes of oil drain plug washers - a gray hard silicone type.

  7. #5
    cormorant is offline Cadillac Owners Member
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    Re: Best oil drain plug seal?

    Thanks for the tips; don't know if my plug is original or not, but will see what I've got when I pull it out!

  8. #6
    CadillacLuke24's Avatar
    CadillacLuke24 is offline Cadillac Owners Master
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    Re: Best oil drain plug seal?

    Yeah if yours is leaking go hit up a parts store and get a new one. I do believe I have the factory plug and it does not leak. AT ALL.

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