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Cadillac ATS Technical Discussion Forum Discussion, GM Oil Change? in Cadillac ATS Discussion Forums; Although I only drive my cars about 5K miles/year (retired, ya know), I have been changing oil/filter on my BMWs ...
  1. #16
    flycaster's Avatar
    flycaster is offline Cadillac Owners Enthusiast
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    Re: GM Oil Change?

    Although I only drive my cars about 5K miles/year (retired, ya know), I have been changing oil/filter on my BMWs only every 12 months for the last 8-11 years, using Mobil 1 synthetic oil. BMW recommends yearly or 15K miles, which ever comes first. The 2002 325 had 68K miles when traded in for the ATS and my 2005 Z4 has 34K miles. Both cars' engines run as smooth as silk. Thus, I have no problem waiting until the ATS's oil alert reaches 20% before changing oil. I'm just interested in seeing at how many miles that 20% will be reached.

  2. #17
    MASCAD is offline Cadillac Owners Member
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    Re: GM Oil Change?

    Quote Originally Posted by flycaster View Post
    Although I only drive my cars about 5K miles/year (retired, ya know), I have been changing oil/filter on my BMWs only every 12 months for the last 8-11 years, using Mobil 1 synthetic oil. BMW recommends yearly or 15K miles, which ever comes first. The 2002 325 had 68K miles when traded in for the ATS and my 2005 Z4 has 34K miles. Both cars' engines run as smooth as silk. Thus, I have no problem waiting until the ATS's oil alert reaches 20% before changing oil. I'm just interested in seeing at how many miles that 20% will be reached.
    If the 20% level isn't reached before a year is up and you have On Star, you will probably start to get messages reminding you to change the oil. This happens on my CTS and I'm thinking it will probably happen on the ATS also since both call for a yearly filter/oil change regardless of mileage/oil life indication`.

  3. #18
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    Re: GM Oil Change?

    Yeah, left that out of my post. Should have said 20% or 1 year, which ever comes first.

  4. #19
    Russianhaxor is offline Cadillac Owners Member
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    Re: GM Oil Change?

    I'm curious, what do these cars actually run? Is it synthetic? is it a blend? conventional?

    I think it would be stupid for them to run conventional in such a high performance car. FFS I ran synthetic in my Volvo S40 and it purred because of it. The car ran noticeably differently when no conventional.

    I would just hate to not get the most out of my car if I'm not running synthetic. Granted, this is a lease and I don't care that much about the longevity of the engine, I just care about how it'll drive when I have it.

  5. #20
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    The main advantage of synthetic oil is it's ability to withstand higher temperatures. This is why high performance/supercharged/turbocharged engines REQUIRE synthetic oil.

    Using synthetic in an engine that does not require it, will make ABSOLUTELY NO DIFFERENCE in how it runs or drives, or how much power it makes. If you feel a difference, it's the placebo effect.

    On the other hand, using dino oil in an engine that requires synthetic, will also have no effect on how it runs, drives, or power output.....right up until the oil turns to sludge, and something seizes.

  6. #21
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    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    Re: GM Oil Change?

    ATS 2.0T and 3.6L are spec'd for Desox1 5w30
    the 2.5L engine is spec'd for Deoxs1 5w20
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
    Rippy is a Cadillac, Hummer, Saturn & Saab dealership - family owned and operated in Wilmington, NC since 1946
    We offer all forum members discounts on parts and freight - e: parts@rippyautomotive.com ph: 800-RIPPY-22
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  7. #22
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    Hoosier Daddy is offline Moderator
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    Re: GM Oil Change?

    Quote Originally Posted by Russianhaxor View Post
    I'm curious, what do these cars actually run? Is it synthetic? is it a blend? conventional?

    I think it would be stupid for them to run conventional in such a high performance car. FFS I ran synthetic in my Volvo S40 and it purred because of it. The car ran noticeably differently when no conventional.
    It's not black and white any more. They can do so much now starting with dino oil (yeah, I know its not from dinosaurs) that that distinction by itself is almost meaningless. Most Mobile One is now made from dino oil. But it is refined and altered so extensively, it truly is synthetic and the government allows them (and others) to use the designation. About the only significant differences under the operating conditions of a road car is longevity and GM factors that into the algorithms used to tell you when to change the oil. If you don't SERIOUSLY track the car, it doesn't matter and if you do, you will be changing at the end of each event anyway before you go back to commuting in it.

  8. #23
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    Re: GM Oil Change?

    Mine just hit 20% at 5500 miles, so its time for the oil change.

    Kevin

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