What signs do i need to be on the look out for when it comes to my GM 3.6 engine oil?
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Cadillac STS Forum - 2005 through 2012 Discussion, What signs do i need to be on the look out for when it comes to my GM 3.6 engine oil? in Past Cadillac Vehicle Discussion; What are all the important signs i need to be aware of for the GM 3.6 engine oil in my ...
  1. #1
    viccampjr's Avatar
    viccampjr is offline Cadillac Owners Member
    Automobile(s): 2007 STS
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    What signs do i need to be on the look out for when it comes to my GM 3.6 engine oil?

    What are all the important signs i need to be aware of for the GM 3.6 engine oil in my 2007 STS?

    I just bought a 2007 STS all wheel drive with 58,000 miles on it and was wondering if i might incounter any oil problems with this year cadillac.

    Are there any 2007 STS owners that never had any oil problems with their GM 3.6 ?

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  3. #2
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
    Automobile(s): White Diamond 06 STS V8 RWD 1SF F55 HUD/ACC NAV - 128k
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    Re: What signs do i need to be on the look out for when it comes to my GM 3.6 engine

    Just check it regularly, get a good handle on how much it goes through, if any. You may never have an issue at all, but just be aware that the 3.6 is known for using oil causing premature timing chain wear.

    Do some reading over in the 1st Gen CTS forum, TONS of information over there regarding this issue. Also, you could try reaching out to a member on here from FL, SC2150. He works with a company that has done significant work on the 3.6L LY7 engine and I'm sure he could give you a better idea as to what to expect and measures you can take to prevent it.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

  4. #3
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
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    Least with an 07 he has extended timing chain warranty. Else I would run from a 3.6 and its oil consumption timing chain (that apparently doesn't exist per GM) problems.

  5. #4
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
    Automobile(s): White Diamond 06 STS V8 RWD 1SF F55 HUD/ACC NAV - 128k
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    Re: What signs do i need to be on the look out for when it comes to my GM 3.6 engine

    Yes, good reminder 1Bad...

    Your timing chain is covered for, IIRC, 10 years or 120k, under an extended coverage adjustment that was made by GM.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

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