Welcome to the North American Subaru Impreza Owners Club Monday September 25, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 12-18-2012, 11:56 AM   #1
Scooby Specialist
Member#: 43950
Join Date: Sep 2003
Chapter/Region: MWSOC
Location: Minneapolis, MN
07 WRX LTD Wagon
Satin White Pearl

Default 50k mi of UOAs - 2010 Outback 3.6R - M1 is Good!

I've been planning to post these for a while. Finally got around to it.

These are the UOA results from my dad's 2010 Outback 3.6. M1 0w40 and 0w30 have been used exclusively for the last 30k miles. Nice low Iron numbers except for the first M1 UOA, which was just after some accident repairs so I suspect lots of really short trips into and around the body shop. Oil is labeled on an empty line. 0w30/40 indicates a blend of M1 0w30 and 0w40 (I don't have the exact mix, I'll see if my dad kept records). The 3.6R has a ~7qt sump IIRC, and my dad hasn't always been able to get enough of the 0w40. Now that he's done a couple of runs with the 0w30, I think we're going to switch to it exclusively. Seems to hold up well, and is a bunch cheaper than the 0w40 when purchased in the 5qt jug at WM. The one quart of make up oil in the 31,687 mi UOA was totally unnecessary and was Pennzoil HM 5w30. The short trip from the hotel to the gas station (~1 block) caused oil to sit in the heads and the dipstick to read unrealistically low. I'm not sure about the make up oil in the next UOA, I'll have to ask my dad.

His driving is primarily highway, say 80%+. His shortest regular trip is 12 mi to town, and he does lots of trips of 170+ mi from Northern Minnesota to the Twin Cities. He does see absolutely frigid temperatures in the winter though, thus the use of 0w oils.

Cliff's Notes:
Nothing to fear from Mobil 1 0w30 in a N/A Subaru, even the new ones with timing chains (which are supposedly harder on oil). Also, Pennzoil Platinum works well.


Last edited by gpshumway; 12-18-2012 at 11:58 AM. Reason: Stupid fat fingers.
gpshumway is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 04:07 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.