Oil consumption

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  • 4 Post By AmericanMuscle
Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Oil consumption in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I have just recently purchased a used 2005 CTS with 80k miles. The engine runs fine but it uses 1 ...
  1. #1
    cwilder3 is offline Cadillac Owners Member
    Automobile(s): 2005 CTS
    Join Date
    Jul 2012

    Oil consumption

    I have just recently purchased a used 2005 CTS with 80k miles. The engine runs fine but it uses 1 qt every 500 miles. Seems excessive to me. No loss of oil do to leaks. Used Mobil 1 as recommended and just put in 1 qt of Lucus stablizer for the quart that is low. Any suggestions?

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  3. #2
    AmericanMuscle is offline Cadillac Owners Fanatic
    Join Date
    Mar 2005

    Re: Oil consumption

    Suggestions? Yeah...there is a huge thread on here regarding a fix to the oil consumption issue. Involves pulling and drilling out the PCV orifice. Search for the topic and you'll see a great write up complete with pictures.
    Argent1, Argent1, cwilder3 and 1 others like this.

  4. #3
    Argent1's Avatar
    Argent1 is offline Cadillac Owners Connoisseur
    Automobile(s): '07 CTS 3.6
    Join Date
    Nov 2010

    Re: Oil consumption

    There is a SEARCH option at the top right side of the page.
    It works amazingly. I think proper spelling counts, or at least will help, though.

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