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Thread: Why use mobile one oil?

  1. #1
    Tom d is offline Cadillac Owners Member
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    Why use mobile one oil?

    Why do I have to use mobile one oil only in my 2009 srx 3.6 v-6?


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  3. #2
    sgilbert's Avatar
    sgilbert is offline Cadillac Owners Connoisseur
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    Re: Why use mobile one oil?

    You don't. Any fully synthetic of the same weight will work. IMHO, however, Mobil 1 is the best.

    If price is the issue, check the discount clubs; it is cheaper there.

  4. #3
    repnatl is offline Cadillac Owners Enthusiast
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    5qt jug is $40 at AutoZone and $25 at Walmart so that saves money. Keep a couple extra qts in the truck as these things use alot of oil.

  5. #4
    ktr-sb is offline Cadillac Owners Fanatic
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    Re: Why use mobile one oil?

    Yeah, GM doesn't know what they are talking about. Just use whatever. Recycled oil would save you lots of money. </sarc>

  6. #5
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    mwswarrior is offline Cadillac Owners Member
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    Re: Why use mobile one oil?

    I use the local farm and fleet labeled synthetic. Less than 1/2 the price of M1.

  7. #6
    08SRX's Avatar
    08SRX is online now Cadillac Owners Connoisseur
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    Re: Why use mobile one oil?

    While I agree that you do not have to use Mobil 1, the engine oil you use must be within the following specifications:
    5W30 (pending climatic conditions), Full Synthetic, API approved, meets GM4718M specification.
    Other oils can potentially damage the engine over the long term and or void powertrain warranty.

  8. #7
    PJ1520 is offline Cadillac Owners Connoisseur
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    Re: Why use mobile one oil?

    Quote Originally Posted by 08SRX View Post
    While I agree that you do not have to use Mobil 1, the engine oil you use must be within the following specifications:

    5W30 (pending climatic conditions), Full Synthetic, API approved, meets GM4718M specification.
    Other oils can potentially damage the engine over the long term and or void powertrain warranty.
    Good stuff, 08.

    Saying that (synthetic) motor oils are all the same is like saying all gasolines (brands, tiers) are the same. They are definitely not. When one goes out and sinks a ton of $$$ in a vehicle, why would you then turn around and roll the dice (risk your money spent) on the lubricants used to maintain it in order to save a few bucks? There is miniscule cost/benefit in doing so.

    PJ


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