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Old 10-31-2014, 03:23 PM   #1
WRXMike1
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Lightbulb Subaru Synthetic Oil 5w30 (2015 WRX) Help

Hi All,
Does anyone have any experiences with the Subaru synthetic oil? Is it any good? (In comparison to preferred oils like Shell Rotella, Amsoil, Motul, and etc)

I'm coming up on my first oil change and I am not sure what oil to use. See below for some info I found on another site, particularly for the 2015 WRX and let me know what you think. Disagree? Agree?

Recommended brands, which have been proven time and time again to be the go-to:

- Shell Rotella T6 0w40 if you're in a cold climate, 5w40 or 10w40 if you're in a hotter climate
- Amsoil signature 10w40
- Mobil 1 0w30 or 5w30 (GERMAN SPEC)
- Castrol Edge 0w30 or 5w30 (GERMAN SPEC)
- Motul 8000 5w40
- Motul 300v
- Redline 5w40 or 10w40
- General rule of thumb, any Porsche approved oil is usually very well capable of dealing with our motors. Porsche has a much higher standard for parts and fluids.

Your choice of oil may change during winter vs summer, if you live in a cold climate, 0w30 is gives you a better start up viscosity of 5w30 or 5w40.

Brands/models to avoid due to bad experiences, direct causation of engine failures:

- Royal Purple
- Mobil 1 USDM spec
- Castrol is iffy under USDM spec, 10w40 seems to farewell, 5w30 is inconsistent
- Gas station oil brands
- High odds of your dealer using bulk oil or department store synthetic oils to keep costs low.
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Old 10-31-2014, 03:40 PM   #2
SJSC1608NJ
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I use oem filter and oil.


Put your flame suit on.
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Old 10-31-2014, 03:46 PM   #3
iChar
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Sounds like you're looking for: http://forums.nasioc.com/forums/forumdisplay.php?f=65

Specifically you probably want to read every post in this thread: http://forums.nasioc.com/forums/show....php?t=2657990

Also the answer to your questions is RT6. Buy some 5w30 in-spec oil and return them for a receipt if you're worried about warranty. When you deal with most 5w30's, especially with the ones covered by the factory warranty you're essentially just closing your eyes and picking a bottle off the shelf since they are all pretty much the same.
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Old 10-31-2014, 03:49 PM   #4
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Quote:
Originally Posted by iChar View Post
Sounds like you're looking for: http://forums.nasioc.com/forums/forumdisplay.php?f=65

Specifically you probably want to read every post in this thread: http://forums.nasioc.com/forums/show....php?t=2657990

Also the answer to your questions is RT6. Buy some 5w30 in-spec oil and return them for a receipt if you're worried about warranty. When you deal with most 5w30's, especially with the ones covered by the factory warranty you're essentially just closing your eyes and picking a bottle off the shelf since they are all pretty much the same.
Awesome, thanks for your input! Checking those threads now.
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Old 10-31-2014, 03:52 PM   #5
anjuna
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Also, WRONG SUBFORUM
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Old 10-31-2014, 04:04 PM   #6
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Quote:
Originally Posted by anjuna View Post
Also, WRONG SUBFORUM
hah, yea. Pretty new here so I'm still finding my way around. iChar directed me to the right place
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Old 11-03-2014, 12:56 AM   #7
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Shell Rotella 5w40 has been an excellent choice for my So Cal climate. It is readily available at Wmrt for a good price and most Jiffy locations carry it as well.
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Old 11-03-2014, 12:21 PM   #8
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+1 for rotella t6 but the post is in the wrong subforum
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Old 11-03-2014, 02:41 PM   #9
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where do you get german spec mobil 1?
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Old 11-05-2014, 07:37 PM   #10
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Quote:
Originally Posted by 09STI-DGM View Post
Shell Rotella 5w40 has been an excellent choice for my So Cal climate. It is readily available at Wmrt for a good price and most Jiffy locations carry it as well.
Awesome, I was edging for RT6, glad you guys are confirming it.
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Old 11-05-2014, 07:54 PM   #11
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Quote:
Originally Posted by WRXMike1 View Post
Awesome, I was edging for RT6, glad you guys are confirming it.
I would suggest otherwise. But it's your engine.
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Old 11-05-2014, 10:09 PM   #12
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Quote:
Originally Posted by 86Dreams View Post
where do you get german spec mobil 1?
walmart...its in the 0w40 jug.....
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Old 11-06-2014, 11:20 AM   #13
iChar
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Quote:
Originally Posted by mishapopa View Post
I would suggest otherwise. But it's your engine.
Any particular reason why you would suggest otherwise?
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Old 11-06-2014, 04:28 PM   #14
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Anyone currently Frankenblending Pennzoil Ultra 5w-30 and T6?

I was planning on using a gallon of the Pennzoil, 1.4 liters of the T6, then topping off with the T6 as needed considering the 5w-30 would likely shear down.

Or is it a better bet to just stick to the Pennzoil and quit trying to be a smartass?
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Old 11-06-2014, 05:00 PM   #15
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Quote:
Originally Posted by mishapopa View Post
I would suggest otherwise. But it's your engine.
First off, this may be the wrong sub forum for this whole post, but you have no proof to prove otherwise why the T-6 isn't a "better" choice over the gf-5 rated energy conserving 5w30's.

For warranty purposes there are a few options that do "just ok", but putting that aside, you CAN NOT beat the T-6 nor the M1 0w40 in these engines. there's too much info to prove this....
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Old 11-06-2014, 05:47 PM   #16
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Quote:
Originally Posted by Uncle Scotty View Post
walmart...its in the 0w40 jug.....
Where do you get NOT German Spec Mobil 1

But on a side note, since we're all here, Is there any danger to switching to different oils? I feel like it took me a bit to decide that I like M1, but I was using 5w30. Now its recommended to use 0w40.
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Old 11-06-2014, 07:15 PM   #17
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we need a moderator to move this thread to the proper foum
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Old 11-06-2014, 08:49 PM   #18
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Quote:
Originally Posted by Uncle Scotty View Post
we need a moderator to move this thread to the proper foum
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Old 11-07-2014, 02:31 AM   #19
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I've always used Mobil 1 synthetic and never have had any problems with my cars. And i would say to use the OEM filter.
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Old 11-08-2014, 07:54 PM   #20
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Quote:
Originally Posted by Uncle Scotty View Post
we need a moderator to move this thread to the proper foum
Quote:
Originally Posted by subi400 View Post
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Old 11-08-2014, 09:23 PM   #21
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Quote:
Originally Posted by manny4ag2zz View Post
I've always used Mobil 1 synthetic and never have had any problems with my cars.

this is like saying you use toilet paper to wipe your ass....

tells us NOTHING
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Old 11-08-2014, 10:33 PM   #22
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You may want to consider Mobil 1 ESP 5w-30.

I just did an oil change today, and used that oil. I'm excited to see how it turns out. Beware, its pricey and hard to find.

Otherwise I'd probably use Mobil 1 0w-40 Euro Spec, its just so easy to come by. $25 bucks for 5 quarts. But the car is still under warranty, so I opted for the ESP.
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Old 11-08-2014, 11:04 PM   #23
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these new dit motors may need an oil that isn't gonna leave lots of deposits in the intake system

the new penzoil syn offerings seem to address this issue

I woudnt use any old oil in a di Subaru....and I wouldn't use the t6 in one for that reason only
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Old 11-11-2014, 05:28 PM   #24
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Quote:
Originally Posted by Uncle Scotty View Post
these new dit motors may need an oil that isn't gonna leave lots of deposits in the intake system

the new penzoil syn offerings seem to address this issue

I woudnt use any old oil in a di Subaru....and I wouldn't use the t6 in one for that reason only
...That's huge. Uncle Scotty not recommending T6...

Okay, taking the unopened T6 back and running Penzoil Syn Ultra 5w-30 exclusively and adhering to the 6k OCI.
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Old 11-12-2014, 10:38 AM   #25
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Every other oil thread on here the Mobil 1 ESP 5w-30 comes well recommended for this new 2.0DIT. I would encourage you to check out bobistheoilguy and the 2015 oil testing thread here on nasioc for further reading.
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