2015 WRX Oil Change
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This is a discussion on 2015 WRX Oil Change within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; Changed engine oil for the first time, VERY easy and love the filter on top of engine. Be careful that ...

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    2015 WRX Oil Change

    Changed engine oil for the first time, VERY easy and love the filter on top of engine. Be careful that you remove the oil plug gasket ... gasket is painted onto the plug at factory and it is easy to overlook that it is there. Tools used: Rhino Ramps, 14mm 6-point socket and 80mm/15 Flutes oil cap filter wrench. Installed a set of Enkei T6S wheels recently, was not a fan of the black wheels.

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    zax
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    How many miles on the car and what oil did you go with?>
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    what oil and filter >

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    Mobil 1

    Quote Originally Posted by zax View Post
    How many miles on the car and what oil did you go with?>
    1323 miles on REX. I think the engine is quieter with the Mobil 1 (5W30) .....

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    Quote Originally Posted by EdBurr View Post
    1323 miles on REX. I think the engine is quieter with the Mobil 1 (5W30) .....
    Ah OK. Mobil 1 is a hot topic around here.
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    Registered User Raven Logics's Avatar
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    Quote Originally Posted by zax View Post
    Ah OK. Mobil 1 is a hot topic around here.
    Why is that?

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    zax
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    Quote Originally Posted by Raven Logics View Post
    Why is that?
    It is well known to sheer quickly and produce sub-par UOAs.
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    Here's an excellent UOA with Mobil1 5W-30 in a modern Subaru turbo:

    first Blackstone oil report on BlueRex

    I'd not hesitate to use M1 is any of my vehicles at the specified grade and viscosity.
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    zax
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    Quote Originally Posted by SD_GR View Post
    Here's an excellent UOA with Mobil1 5W-30 in a modern Subaru turbo:

    first Blackstone oil report on BlueRex

    I'd not hesitate to use M1 is any of my vehicles at the specified grade and viscosity.
    One sheep does not make a flock, Spiros.

    For this one UOA, there are 5 more over at BITOG that show premature sheer. I won't pretend to know how to read a UOA, so I admit that I am just one voice in the internet choir.
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    Registered User Raven Logics's Avatar
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    My dealership suggested that I use M1 for top-ups if I ever require them. What is the usual suggestion for oil on here?

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    Quote Originally Posted by Raven Logics View Post
    My dealership suggested that I use M1 for top-ups if I ever require them. What is the usual suggestion for oil on here?
    There is a significant following for Rotella T6. However, it's neither the recommended viscosity nor energy conserving.
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    2015 WRX Oil Change

    Quote Originally Posted by zax View Post
    One sheep does not make a flock, Spiros.

    For this one UOA, there are 5 more over at BITOG that show premature sheer.
    That's certainly true too I admit. I just don't think our engines are particularly hard on oil. The valve train seems reasonable.

    The long term trends in that link are great. However they do point out one thing: look at the flashpoint drop in a UOA. With age the oil becomes more volatile so to speak. It's CRUCIAL to keep the oil level correct, no matter what oil is in there, fancy or not. That's my first concern. Anything else only follows.

    This also shows oil loss -- consumption, leaks, and volatility combined -- is not linear. It can accelerate as the use interval progresses. It's up to the user to check frequently enough to spot and stop trends.
    Last edited by SD_GR; 07-07-2014 at 01:41 PM.
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    Maybe this is a stupid question and has been covered before:

    Why not just use the recommended oil from the subaru dealership. I am sure you can purchase a case of oil and oil filters and change in the driveway?

    Also, any insight on Motul oil?
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  15. #14
    He simply abides. SD_GR's Avatar
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    There is no official oil. Dealers recommend what they sell. I'd not buy in bulk because I want dated receipts for each change.

    Motul exists and some dealers sell it.
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    The world breaks everyone and afterward many are strong in the broken places. Ernest Hemingway
    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
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