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Subaru forester Wix oil analysis with m1 EP 5w30 #4659107
02/07/18 02:35 PM
02/07/18 02:35 PM
Joined: Feb 2018
Posts: 4
az
vjsi Offline OP
vjsi  Offline OP
Joined: Feb 2018
Posts: 4
az
Subaru forester N/A 2009 5MT

DATE SAMPLED 09-Jan-18
DATE RECEIVED 15-Jan-18
DATE REPORTED 16-Jan-18
UIN 0648C88 TIME ON OIL 6600
Unidentified
Unidentified
OIL ANALYSIS REPORT LAB NO. 40110812051
SIF NO. 032183
TIME ON UNIT 85737
Gasoline Engine Unit No. Subaru Forester

Unit:
Make Subaru Model Forester
Serial No. Site

Compartment:
Name Gasoline Engine

ANALYST: Sam Smith Portland
LEGEND
Normal


Metals (ppm) Iron (Fe) 13
Chromium (Cr) 3
Lead (Pb) <1
Copper (Cu) 2
Tin (Sn) <1
Aluminium (Al) 3
Nickel (Ni) <1
Silver (Ag) <1
Titanium (Ti) <1
Vanadium (V) <1
Contaminants (ppm)
Silicon (Si) 12
Sodium (Na) 9
Potassium (K) <1
Additives (ppm) Magnesium (Mg) 647
Calcium (Ca) 1384
Barium (Ba) <1
Phosphorus (P) 785
Zinc (Zn) 845
Molybdenum (Mo) 100
Boron (B) 47
Contaminants Water (%) <0.05
Coolant No
Physical Tests
Viscosity (cSt 100C) 11.1
OIL GRADE SAE 5W30
OIL ADDED 1qt
FILTER Changed
OIL CHANGED Changed
WO NUMBER
Physical / Chemical
Base Number (mgKOH/g) 3.7

Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659127
02/07/18 02:56 PM
02/07/18 02:56 PM
Joined: Mar 2004
Posts: 20,758
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,758
Upstate NY
Iron and silicon look a bit high for 6600 miles.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659173
02/07/18 03:37 PM
02/07/18 03:37 PM
Joined: Aug 2012
Posts: 169
Central Florida
StevieBoy Offline
StevieBoy  Offline
Joined: Aug 2012
Posts: 169
Central Florida
Would expect that oil to last a lot longer.


2018 Grand Cherokee Limited
25th Anniversary Sterling Edition
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659413
02/07/18 08:03 PM
02/07/18 08:03 PM
Joined: Sep 2009
Posts: 16,026
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,026
OH
Looks good for wear metals.
TBN shows once again that M1 EP isn't necessarily a 15K oil.
It clearly wouldn't have been for this engine as you used it.
How did you use it for this OCI?
How about a little back-story?


17 Forester 18K VME 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659455
02/07/18 08:52 PM
02/07/18 08:52 PM
Joined: Dec 2016
Posts: 6,262
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 6,262
Waco, TX
I'd like to know if the oil had a lot of short-trip driving.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: fdcg27] #4659561
02/07/18 10:33 PM
02/07/18 10:33 PM
Joined: Jan 2009
Posts: 13,837
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,837
Illinois
Originally Posted By: fdcg27
Looks good for wear metals.
TBN shows once again that M1 EP isn't necessarily a 15K oil.
It clearly wouldn't have been for this engine as you used it.
How did you use it for this OCI?
How about a little back-story?


How do you know that? TBN wise, that is. XM says their oil will drop to around 2-3 then stay there for another 5-10K.

Last edited by tig1; 02/07/18 10:35 PM.

2007 Ford Fusion 232,000 miles
M1 0-20 EP
2017 Ford Fusion 55K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters

Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659623
02/08/18 01:27 AM
02/08/18 01:27 AM
Joined: Feb 2018
Posts: 4
az
vjsi Offline OP
vjsi  Offline OP
Joined: Feb 2018
Posts: 4
az
I use this reusable air filter, could possibly be the reason?

https://www.amazon.com/dp/B00LNO13Y4/ref...3--3-0&sr=2

Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: fdcg27] #4659626
02/08/18 01:31 AM
02/08/18 01:31 AM
Joined: Feb 2018
Posts: 4
az
vjsi Offline OP
vjsi  Offline OP
Joined: Feb 2018
Posts: 4
az
Half highway, i drive a 100 mile route 2 times a week, because where i work is different than where i spend my weekend.
Other than that, maybe i drive about 50 to 80 miles of short trips in the city per week.

Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659743
02/08/18 08:15 AM
02/08/18 08:15 AM
Joined: Aug 2003
Posts: 2,296
NJ
bluesubie Offline
bluesubie  Offline
Joined: Aug 2003
Posts: 2,296
NJ
I'd definitely go to 7,500 miles. I doubt the TBN would change much.


'04 Subaru Forester 2.5XT
Castrol Edge High Mileage
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659906
02/08/18 11:37 AM
02/08/18 11:37 AM
Joined: Feb 2018
Posts: 4
az
vjsi Offline OP
vjsi  Offline OP
Joined: Feb 2018
Posts: 4
az
Well, i didn't like the fact that i was losing oil, so i switched to Rotella t6. I'll try 6k miles and then i'll do another analysis. But I still wonder about the Si being a little high, could it be because of that air filter that i'm using that i posted a link to? Thanks

Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4659908
02/08/18 11:40 AM
02/08/18 11:40 AM
Joined: Apr 2008
Posts: 37,187
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,187
Ontario, Canada
Originally Posted By: vjsi
I use this reusable air filter, could possibly be the reason?

https://www.amazon.com/dp/B00LNO13Y4/ref...3--3-0&sr=2


Yes.

Put a paper filter back in there and see if silicon drops.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: bluesubie] #4660577
02/09/18 06:24 AM
02/09/18 06:24 AM
Joined: Sep 2015
Posts: 2,260
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,260
Malaysia
Originally Posted By: bluesubie
I'd definitely go to 7,500 miles. I doubt the TBN would change much.

Concur with you ... as I'd seen it's residual TBN at 9-13k mile OCI's of 2-3.
15k in OP's subaru ? ..... I won't rule out though.


Originally Posted By: vjsi
....... But I still wonder about the Si being a little high, could it be because of that air filter that i'm using that i posted a link to? Thanks

VOA of EP 5W30 indicates 4-6 ppm of Si.
I 'believe' your Subaru air filtration system is performing as it's intended to , no evidence from me though.

Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: vjsi] #4660639
02/09/18 08:46 AM
02/09/18 08:46 AM
Joined: Aug 2003
Posts: 2,296
NJ
bluesubie Offline
bluesubie  Offline
Joined: Aug 2003
Posts: 2,296
NJ
Originally Posted By: vjsi
Well, i didn't like the fact that i was losing oil, so i switched to Rotella t6. I'll try 6k miles and then i'll do another analysis. But I still wonder about the Si being a little high, could it be because of that air filter that i'm using that i posted a link to? Thanks

T6 5W-30 or 5W-40? I would've gone with a high mileage oil. Actually, I would've gone with a conventional HM oil since synthetic isn't required.

Last edited by bluesubie; 02/09/18 08:53 AM.

'04 Subaru Forester 2.5XT
Castrol Edge High Mileage
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: tig1] #4662228
02/10/18 07:36 PM
02/10/18 07:36 PM
Joined: Sep 2009
Posts: 16,026
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,026
OH
Originally Posted By: tig1
Originally Posted By: fdcg27
Looks good for wear metals.
TBN shows once again that M1 EP isn't necessarily a 15K oil.
It clearly wouldn't have been for this engine as you used it.
How did you use it for this OCI?
How about a little back-story?


How do you know that? TBN wise, that is. XM says their oil will drop to around 2-3 then stay there for another 5-10K.


We all know that TBN decline isn't linear, but it seems a bit hard to believe that an oil that had suffered more than 60% TBN decline in only 6600 miles could somehow hang on for another 8400 miles.
I wouldn't bet on this regardless of what XOM marketing people have to say.


17 Forester 18K VME 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Subaru forester Wix oil analysis with m1 EP 5w30 [Re: fdcg27] #4667047
02/15/18 06:21 PM
02/15/18 06:21 PM
Joined: Aug 2003
Posts: 2,296
NJ
bluesubie Offline
bluesubie  Offline
Joined: Aug 2003
Posts: 2,296
NJ
Originally Posted By: fdcg27
Originally Posted By: tig1
Originally Posted By: fdcg27
Looks good for wear metals.
TBN shows once again that M1 EP isn't necessarily a 15K oil.
It clearly wouldn't have been for this engine as you used it.
How did you use it for this OCI?
How about a little back-story?


How do you know that? TBN wise, that is. XM says their oil will drop to around 2-3 then stay there for another 5-10K.


We all know that TBN decline isn't linear, but it seems a bit hard to believe that an oil that had suffered more than 60% TBN decline in only 6600 miles could somehow hang on for another 8400 miles.
I wouldn't bet on this regardless of what XOM marketing people have to say.

The safe way to find out is gradually extending the OCI and peform uoa's accordingly. Oh wait, you're referring to 15k oci's. Never mind. I wouldn't go past 7,500 miles. smile

Last edited by bluesubie; 02/15/18 06:23 PM.

'04 Subaru Forester 2.5XT
Castrol Edge High Mileage
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