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This is a discussion on ??What oil should I use?? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; If it came down to using API specified oil vs one exceeding those specifications, what would you rather use on ...

  1. #196
    iH4
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    If it came down to using API specified oil vs one exceeding those specifications, what would you rather use on your car?

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  3. #197
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    Quote Originally Posted by iH4 View Post
    If it came down to using API specified oil vs one exceeding those specifications, what would you rather use on your car?

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    The oil specified by the car manufacturer under the warranty terms for the duration of the warranty. After that I'd use whatever oil was easy to obtain and provided acceptable data. However the 5W-20 above is an API oil, and it would be suitable to use in e.g. my Honda. Thanks for the pic.
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    Quote Originally Posted by iH4 View Post
    If it came down to using API specified oil vs one exceeding those specifications, what would you rather use on your car?

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    While under warranty? An API certified oil. They can give you grief over using a slightly higher grade but not using an oil certified to meet SN specs on a newer car is asking for even more headaches.

  5. #199
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    Does your local dealer sell and/or will service your new car with say... Motul 5w40?

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    Quote Originally Posted by iH4 View Post
    Does your local dealer sell and/or will service your new car with say... Motul 5w40?

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    Not sure what point you're trying to make or who your question is directed at but Motul does not manufacture a 5W-40 that meets API SN specs. So I would not expect my local dealer to service or sell a new car using such oil.
    I think SOA would have a hard time rejecting a warranty claim because one was using M1 0W-40. Yes, its a slightly higher grade than 5W-30 but it still meets API SN specs. The service manager was more concerned about the use of a API SN synthetic than he was about wether or not I stuck with a 30 grade.

  7. #201
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    If you're not too concerned about it because you know the dealer that services your car, understands the benefits of such "boutique" oils, then why not use something that should and would protect your engine better than a standard API type oil lubricant? FYI: I bought a gallon of Motul 5w40 from local dealer who would also service my new car with it prior to getting PurOl.

    Porsche, Audi, Ferrari and Subaru enthusiast are now running PurOl based on proven results from chemical and mechanical engineers, its dyno tested to increase power, that's what I'll be running.

    The thread asks "what oil should I use" - Basically, I guess if you know your service dealer will give you a hard time about it (should some engine damage occurred related to oil) then I would suggest stick to OE Subaru dealer synthetic only. Use whatever is best based on your knowledge, judgement and resources.
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  8. #202
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    You'd be relying on the word of someone that works at a specific dealer that running the wrong oil spec will not be the cause they chose to deny your warranty claim. Words are worthless. The guy may retire. He may change his mind. A claim may change his view. Everyone's your brother till the rent comes due.

    Now if the expensive oil meets the spec then no worries just keep dated receipts. That'd be ideal.

    Even then though, consider that I've generated single-digit wear data using less expensive, widely available oil from a much better established firm. Since getting even lower wear numbers isn't statistically significant when the data are that low, I don't actually see a reason to risk a "boutique" choice.

    If you decide to run that other stuff though it'd be interesting to see used oil analysis data from your motor. They probably buy their materials from the established firms but it's interesting to see how their choices might affect wear rates etc. They might be quite good. Thanks for link.

    Edit: I got curious and searched for data; there are no data on that oil on Bob's site. Do you happen to know of any UOA links?
    Last edited by SD_GR; 08-10-2013 at 07:23 AM.
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    Man is a brute.... If you're cruel to him, he respects and fears you. If you're kind to him, he plucks your eyes out. Alexis Zorbas
    I lied. I cheated. I bribed men to cover the crimes of other men. I am an accessory to murder. But the most damning thing of all... I think I can live with it. And if I had to do it all over again - I would. Benjamin Sisko
    DISCLAIMER: Opinions expressed are the author's alone and are inherently worthless.

  9. #203
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    hi,

    im kinda confused..I just bought the rotella t6 oil and i just realized its for diesel applications.. Is that normal?

  10. #204
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    Quote Originally Posted by Big_Ben View Post
    hi,

    im kinda confused..I just bought the rotella t6 oil and i just realized its for diesel applications.. Is that normal?
    It is not only for diesel applications. Look on the label and there should be gasoline engine applications listed as well. Since you are in a different country your product may vary; however there are non-diesel specifications listed in parallel with the diesel spec.
    WRX Info Links, Courtesy TheJ
    Man is a brute.... If you're cruel to him, he respects and fears you. If you're kind to him, he plucks your eyes out. Alexis Zorbas
    I lied. I cheated. I bribed men to cover the crimes of other men. I am an accessory to murder. But the most damning thing of all... I think I can live with it. And if I had to do it all over again - I would. Benjamin Sisko
    DISCLAIMER: Opinions expressed are the author's alone and are inherently worthless.

  11. #205
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    Quote Originally Posted by SD_GR View Post
    It is not only for diesel applications. Look on the label and there should be gasoline engine applications listed as well. Since you are in a different country your product may vary; however there are non-diesel specifications listed in parallel with the diesel spec.
    Oh I saw a label stating specification and approvals

    SM is listed in there

    Go I guess its all good.

    Here's some pics of the bottle





    Also, do I need a new crush washer when puting back the drain plug in?

  12. #206
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    Yes SM is an API specification for gasoline oil.

    You know I'd not noticed before that Rotella T6 is also JASO MA, meaning it's OK for motorcycles with wet clutches too. Interesting.
    WRX Info Links, Courtesy TheJ
    Man is a brute.... If you're cruel to him, he respects and fears you. If you're kind to him, he plucks your eyes out. Alexis Zorbas
    I lied. I cheated. I bribed men to cover the crimes of other men. I am an accessory to murder. But the most damning thing of all... I think I can live with it. And if I had to do it all over again - I would. Benjamin Sisko
    DISCLAIMER: Opinions expressed are the author's alone and are inherently worthless.

  13. #207
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    glad to see my question made you learn something new!

    thanks for your help.

  14. #208
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    Quote Originally Posted by Big_Ben
    Also, do I need a new crush washer when puting back the drain plug in?
    Yes
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  15. #209
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    Me:



    PurOl
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  16. #210
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    I apologize for the necropost, but I haven't seen any mention of the proper relief valve pressure. Our cars have a higher pressure than most (23psi if my memory serves me). Stick with the OEM filters or the wix/purolator filters made with the proper relief valve. There's no sense worrying about the "best" oil if it's bypassing the filter most of the time.

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