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This is a discussion on Oil TSB for 2006+ Subarus within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; They're different companies. Their main concern with regard to one another is to avoid competition (US cars in CA, CA ...

  1. #16
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    They're different companies. Their main concern with regard to one another is to avoid competition (US cars in CA, CA cars in US). Other than that, no relation.
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    Quote Originally Posted by SD_GR View Post
    They're different companies. Their main concern with regard to one another is to avoid competition (US cars in CA, CA cars in US). Other than that, no relation.
    Agreed. I just thought there would be a standard maintenance guide stating the same oil grades and same oil change interval since they both deal with the same cars in similar climates (at least in the northern states). This gets me confused when I hear Motul is not approved in the US, but is offered up here... it makes me question if I'm hurting my car in the long run or not.
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    I noticed my local Subaru Dealership sells Royal Purple and reccomends it wtf
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    So if I have Castrol Syntec 0w30 in my '06 2.5i, and the Castrol Syntec is rated at ILSAC GF-3 and API SL, and from what I gathered from this thread is that I should have an oil that meets GF-4/SM requirements. Will my car blow up or any negatives come from it? I've got 41k on it and this last oil change(300miles ago) was the first time I put this oil in it. I was previously puttin Mobil 1 synthetic 10w30. I've got some money so even though this oil is only 300 miles old I'm takin out today!

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    Quote Originally Posted by mikeyphotog View Post
    So if I have Castrol Syntec 0w30 in my '06 2.5i, and the Castrol Syntec is rated at ILSAC GF-3 and API SL, and from what I gathered from this thread is that I should have an oil that meets GF-4/SM requirements. Will my car blow up or any negatives come from it? I've got 41k on it and this last oil change(300miles ago) was the first time I put this oil in it. I was previously puttin Mobil 1 synthetic 10w30. I've got some money so even though this oil is only 300 miles old I'm takin out today!

    Yeah it need either be GF4 or API SM. Since you hit neither of them, I'd change it.
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    Quote Originally Posted by mikeyphotog View Post
    So if I have Castrol Syntec 0w30 in my '06 2.5i, and the Castrol Syntec is rated at ILSAC GF-3 and API SL, and from what I gathered from this thread is that I should have an oil that meets GF-4/SM requirements. Will my car blow up or any negatives come from it? I've got 41k on it and this last oil change(300miles ago) was the first time I put this oil in it. I was previously puttin Mobil 1 synthetic 10w30. I've got some money so even though this oil is only 300 miles old I'm takin out today!
    Is it out of warranty? If it is then I'd keep what you got in there and just swap it out at 3k. Honestly it shouldnt matter unless you are trying to adhere to the warranty requirements for the powertrain.
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    Yes its outta warranty, it expired at 30k. I checked and the mobil 1 does meet GF-4 SM standards so up until this change I was ok. I had heard that the Syntec was a very good oil, the only one meeting BMW's standards. I'll just change it at the regular interval, I usually go 5k. Thanks for the speedy responses guys.

    On a side note, I changed my tranny fluid at 35k and put in USC, not because I was having problems shifting but because I'd read that its pretty good for curing "notchyness" so I figured it would be like preventative maintenence. It's holding up fine after 6k, even when I double clutch down to first smooth as butter. Reverse doesn't want to slide in sometimes on the first start, have to let it roll back a bit then no problem. I'm thinkin of trying just the redline combo next time, maybe at 45k if I have some extra money.

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    Powertrain warranty is 5 year/ 60k miles
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    I thought you meant the 3yr/30k maintanence warranty. Thanks for all the info, I'm not too worried about it, Syntec is a really good oil(from what my friend tells me, and he's thourough on his research to the point of anal retentiveness) and the mobil 1 I was puttin in it meets GF-4/SM standards. So I guess for another 3yrs or 19k I'll keep with the warranty specs.

  11. #25
    c1k
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    Quote Originally Posted by 302@12psi View Post
    What is NOT GF-4 (or SM) approved?
    -Royal Purple
    -Motul
    -Mobil1 SuperSyn
    The mobil site states that their oils with supersyn technology are GF-4 and SM approved oils.
    http://www.mobiloil.com/USA-English/...bil1_5W-30.asp
    Is this a different oil that what was posted as not approved?

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    Quote Originally Posted by c1k View Post
    The mobil site states that their oils with supersyn technology are GF-4 and SM approved oils.
    http://www.mobiloil.com/USA-English/...bil1_5W-30.asp
    Is this a different oil that what was posted as not approved?
    Of course Mobil 1 wants you to use it, but Subaru specifically recommends against the Super Syn. I do notice that their website seems to have changed on that product, although I know last time I checked oil at the store the Super Syn wasn't Sm "energy conserving" . Could be a typo.
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    Quote Originally Posted by 06wrx4me View Post
    Of course Mobil 1 wants you to use it, but Subaru specifically recommends against the Super Syn. I do notice that their website seems to have changed on that product, although I know last time I checked oil at the store the Super Syn wasn't Sm "energy conserving" . Could be a typo.
    Where is it stated that Subaru recommend against using supersyn?

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    Quote Originally Posted by c1k View Post
    Where is it stated that Subaru recommend against using supersyn?
    In the TSB stated in the first post of this thread.
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    c1k
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    Quote Originally Posted by 06wrx4me View Post
    In the TSB stated in the first post of this thread.
    Oh that looked like a summery of the TSB written by someone else to me.

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    Quote Originally Posted by c1k View Post
    Oh that looked like a summery of the TSB written by someone else to me.

    In any event, the normal Mobil 1 works great, is approved, and is cheaper so personally I'd stick with that.
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