Oil consumption and catch can

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2008-2013 Cadillac CTS General Discussion Discussion, Oil consumption and catch can in Cadillac CTS Second Generation Forum - 2008-2013; I installed a catch can right at 14K miles on my '12 coupe. Prior to that I would have to ...
  1. #1
    gohawks63's Avatar
    gohawks63 is offline Cadillac Owners Connoisseur
    Automobile(s): 2012 Black Diamond CTS-V Coupe
    Join Date
    Feb 2008
    I installed a catch can right at 14K miles on my '12 coupe. Prior to that I would have to add about a quart of oil every 5K-6K miles. Certainly not an issue.

    My car now has 19k miles 5K since the install. Last night I checked the oil and it was full. Right at the bottom of the top hash mark.

    My question is that I know the catch can is supposed to prevent oil ingestion, but I should see the oil lower on the engine but in the catch can. No?

    Could the catch can actually be preventing the oil from even getting sucked in?

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  3. #2
    billeee is offline Cadillac Owners Fanatic
    Automobile(s): 2011 DTS 2012 CTS
    Join Date
    Jun 2011

    Re: Oil consumption and catch can

    Not unless the catch can has a built-in bilge pump to return the oil. Most likely the piston rings are now fully broken in.

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