Holy Oil Consumption Bat Man!
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2008-2013 Cadillac CTS General Discussion Discussion, Holy Oil Consumption Bat Man! in Cadillac CTS Second Generation Forum - 2008-2013; Bought my 2009 CTS last October with about 34,000 miles on it. Got about 38,000 miles on it. Oil percentage ...
  1. #1
    GreaseMonkey's Avatar
    GreaseMonkey is offline Cadillac Owners Fanatic
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    Holy Oil Consumption Bat Man!

    Bought my 2009 CTS last October with about 34,000 miles on it. Got about 38,000 miles on it. Oil percentage is in the 60s, so I decided to check the oil level.

    Not even on the stick! It took about 1.75 quarts to get it to full. I'm going to continue to keep an eye on it, but that's pretty crazy. My previous vehicle, a 2008 Dodge Caliber SRT4 pushing 15 psi of boost would only eat up .5 to 1 quart of oil every 5,000 miles.

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    928S is offline Cadillac Owners Connoisseur
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    Re: Holy Oil Consumption Bat Man!

    Hey GreaseMonkey,

    Your oil consumption is about the same as my '08 3.6L DI (odometer 32Kmi), also the GM accepted rate of 1qt. in 2Kmi., TSB #01-06-01-011F "Info on Engine Oil Consumption Guidelines," Jan 13, 2009.

    Your 60% oil life remaining after 4Kmi. looks very very good to me. Mine is 75% after less than 1Kmi. since last oil & filter change (mild winter weather, average trip 4-6 miles) .

    All of which reminds me...I need to check the oil level now before I forget again...damn!

  4. #3
    GreaseMonkey's Avatar
    GreaseMonkey is offline Cadillac Owners Fanatic
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    Re: Holy Oil Consumption Bat Man!

    I know 1 quart for every 3,000 miles seems to be pretty standard print per most OEMs. Still just shocked that a N/A 3.6L V6 consumes more oil than a 300 HP forced induction 4 cylinder.

  5. #4
    928S is offline Cadillac Owners Connoisseur
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    Re: Holy Oil Consumption Bat Man!

    It's probably worth noting that 2008-2012 CTS owner's manuals say

    "It is a good idea to check the engine oil every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground,"

    while the TSB, referenced above, says

    "To assure a sufficient amount of oil has drained back to the crankcase, and an accurate reading can be obtained, the vehicle should be allowed to sit for at least 15 minutes, after the engine has been shut off, before taking an oil level reading."

    I've found the latter to be true, and, in my experience, fuel stop oil reading can be a misleading waste of time.

  6. #5
    M5eater's Avatar
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    Re: Holy Oil Consumption Bat Man!

    The fuel stop reading line is just a carry over. Car manuals have said you should check oil and fluids every fuel stop for decades.

  7. #6
    ctsfan2009 is offline Cadillac Owners Fanatic
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    Re: Holy Oil Consumption Bat Man!

    I think every car I've ever owned "recommended" checking the oil at every fuel stop. I've always adhered to the idea that the engine needs to sit for at least a few minutes to let everything drain back into the oil pan. Having said that, I haven't checked the CTS's oil in a while. I still have 40% oil life left(oil has about 5K on it now) so I will do that tonight after I get home. So far, I haven't added any so we'll see how much she has used. Last check all was fine.

  8. #7
    sandcracker21 is offline Cadillac Owners Fanatic
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    At what point of "oil life" on the info center do y'all change oil? My dealer recommened changing at 50% life but seems like that's a little early. I would rather be early than late though.

  9. #8
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    Re: Holy Oil Consumption Bat Man!

    hey i don't know what's going on but i've checking my oil every week and am not burning oil. make sure you let the car sit for and hour or so. i have have let the dealer after and oil change thinking i was 1+ quarts low told me to wait and hour before i check it

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    928S is offline Cadillac Owners Connoisseur
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    Re: Holy Oil Consumption Bat Man!

    Quote Originally Posted by sandcracker21 View Post
    At what point of "oil life" on the info center do y'all change oil?
    I used to change oil & filter annually at about 8Kmi. and 40% oil life remaining. Now, after last year’s premature-timing-chain-wear recall/OLM recalibration and shortened oil change intervals, I wait for "Change Engine Oil Soon" message to appear on DIC display at about 5% oil life remaining.

  11. #10
    JackB is offline Cadillac Owners Fanatic
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    Re: Holy Oil Consumption Bat Man!

    I have been reading about this oil consumption issue for some time. Just to let you know that it is not every CTS, my 09 now has 36k miles and it has never needed oil added other than changes.

  12. #11
    kdstrum's Avatar
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    Re: Holy Oil Consumption Bat Man!

    same here 08 rwd 3.6di 21000 miles

  13. #12
    RippyPartsDept's Avatar
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    Re: Holy Oil Consumption Bat Man!

    i'm pretty sure that engine oil consumption is directly related to the break-in procedure (or lack thereof) when the engine was new

    proper break-in should result in very low (or zero) oil consumption
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    Re: Holy Oil Consumption Bat Man!

    Quote Originally Posted by RippyPartsDept View Post
    i'm pretty sure that engine oil consumption is directly related to the break-in procedure (or lack thereof) when the engine was new

    proper break-in should result in very low (or zero) oil consumption
    Maybe, but GM isn't the only one that has D/I engine oil consumption problems;

    the VW 2.0T and Audi 3.0T for example, burn pretty much a quart every 2K miles..

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    RippyPartsDept's Avatar
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    Re: Holy Oil Consumption Bat Man!

    https://www.google.com/search?q=engi...ption+break-in

    looks like honda and acura top that google search (for auto brands)

    but if you add cadillac to that search it brings up a few threads from this forum discussing break-in and how it relates to consumption
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    Re: Holy Oil Consumption Bat Man!

    Quote Originally Posted by RippyPartsDept View Post
    https://www.google.com/search?q=engi...ption+break-in

    looks like honda and acura top that google search (for auto brands)

    but if you add cadillac to that search it brings up a few threads from this forum discussing break-in and how it relates to consumption
    that first link explains a lot of misconceptions. Engines are supposed to burn a little amount of oil, I won't disagree that a quart every 2K on a daily driven engine is probably a little more than typical, but engines are not supposed to contain every drop it had at 0 miles on these 10-13K mile OLM OCI's. The fact that some engines do is coincidence or probably because they spend most of their life at or around idle..

    I had to add a half quart to the LSA a little while ago infact.. but that's because of the MIR day and a few autocross runs, so I'm not freaking out about it .

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