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#4538432 - 10/09/17 07:39 PM 2005 Forester
HowAboutThis Offline


Registered: 10/08/17
Posts: 100
Loc: USA
I tried doing a search but didn't find much. Any advice based on data for dino vs syn OCIs for a 2005 Forester? Driven about 80 miles per day, mostly highway. I typically run a Subaru filter and PP or Napa syn for 7-8k. Anyone going farther? Also found some dino on sale (Chevron) and might try a 5-7k interval with that. Opinions?

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#4538463 - 10/09/17 08:10 PM Re: 2005 Forester [Re: HowAboutThis]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2774
Loc: Wet side WA
I believe that some Subaru's had a problem with some of their vehicles on the 7500K OCI and have dropped them back to 6K. But there is a lot of good synthetic out there on sale I would pay the hundredths of cents a mile more and stay with the full synthetic.
_________________________
2004 Toyota Corolla 121808
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4538476 - 10/09/17 08:24 PM Re: 2005 Forester [Re: JohnnyJohnson]
Rolla07 Offline


Registered: 11/05/11
Posts: 4740
Loc: MTL, CANADA
Originally Posted By: JohnnyJohnson
I believe that some Subaru's had a problem with some of their vehicles on the 7500K OCI and have dropped them back to 6K. But there is a lot of good synthetic out there on sale I would pay the hundredths of cents a mile more and stay with the full synthetic.


Agree. Especially if on sale. Only way to know is whether u do a UOA, if not keep it at 7500.
_________________________
2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967


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#4538484 - 10/09/17 08:33 PM Re: 2005 Forester [Re: HowAboutThis]
Virtus_Probi Online   content


Registered: 06/25/15
Posts: 3970
Loc: New England
Is this an XT?
_________________________
2014 Forester XT, 80500 miles
Last Change;
Valvoline Full Synthetic 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4538497 - 10/09/17 08:44 PM Re: 2005 Forester [Re: Rolla07]
HowAboutThis Offline


Registered: 10/08/17
Posts: 100
Loc: USA
Yeah, it doesn't say syn required and says 3750 or 7500. I've thought of the 15k M1 Extended Performance. I'll probably do 6 month changes and about 10k miles with PP or M1EP. Not sure I'd trust others for that mileage. It already had the new head gasket and the AWD is acting wonky.

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#4538499 - 10/09/17 08:46 PM Re: 2005 Forester [Re: HowAboutThis]
HowAboutThis Offline


Registered: 10/08/17
Posts: 100
Loc: USA
XS not the turbo. Wouldn't run the turbo that long for sure!!!

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#4538504 - 10/09/17 08:51 PM Re: 2005 Forester [Re: HowAboutThis]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2774
Loc: Wet side WA
Originally Posted By: HowAboutThis
Yeah, it doesn't say syn required and says 3750 or 7500. I've thought of the 15k M1 Extended Performance. I'll probably do 6 month changes and about 10k miles with PP or M1EP. Not sure I'd trust others for that mileage. It already had the new head gasket and the AWD is acting wonky.


At what mileage did you have to replace the head gasket and what is the current mileage?
_________________________
2004 Toyota Corolla 121808
Out: QSUD 5W-30 Purolator One 5030
In: Valvoline ML 5w-30 TG4967 117530 2-8-18
2006 Duramax 74047
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73752 4-22-18

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#4538667 - 10/10/17 03:44 AM Re: 2005 Forester [Re: HowAboutThis]
ATex7239 Offline


Registered: 01/19/17
Posts: 331
Loc: Texas,USA
Originally Posted By: HowAboutThis
Yeah, it doesn't say syn required and says 3750 or 7500. I've thought of the 15k M1 Extended Performance. I'll probably do 6 month changes and about 10k miles with PP or M1EP. Not sure I'd trust others for that mileage. It already had the new head gasket and the AWD is acting wonky.


Don't let certain Subaru fans hear that! I mentioned head gaskets issues in another thread and the mob promptly called for my lynching.
_________________________
'12 Buick Enclave 139,xxx
Valvoline ML SynBlend 5w30
ACDelco PF63E

'17 Ford Fusion (Company Lease) 42,xxx
Oil – Don't know
Filter – Don't care

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#4538677 - 10/10/17 04:46 AM Re: 2005 Forester [Re: ATex7239]
krismoriah72 Online   content


Registered: 02/16/09
Posts: 1521
Loc: wv
I bought my wife one a few years back..since my 2001 has been drop dead reliable. Hers developed a piston slap that is common to those EJ25s and we just couldnt bear it anymore and sold it.

It sounds like this vehicle is somewhat new to you so i would ease into extended drains till you see what you have.

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#4538713 - 10/10/17 06:23 AM Re: 2005 Forester [Re: HowAboutThis]
Langanobob Offline


Registered: 04/24/09
Posts: 209
Loc: Reno, Nevada
I'd make sure that I used the Subaru brand head gasket sealer that Subaru dealers sell. It might minimize the risk of another head gaskets replacement.

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#4538847 - 10/10/17 08:58 AM Re: 2005 Forester [Re: HowAboutThis]
thorromig Offline


Registered: 03/22/12
Posts: 804
Loc: BerksCounty/Pa.
Have a good friend that has a 2005 Baja 2.5L NA with approx. 80 thousand original miles that I have serviced since 2007 with oil/filter changes. We have found that running a synthetic 5W30 paired with Fram Ultras running 4000 mile intervals has treated this motor great. We do use the FU for multiple oil changes I wanna clarify. Initially we were running conventional 5W30 oil & it consumed half to a quart of oil between 4000 mile interval changes. When switched to synthetic for some reason -- consumption stopped immediately?? This car is short tripped 90% of the time & thats why the oil change interval of 4000 miles is sufficient we find. Actually running ST.Synthetic 5w30 at this moment that I purchased for $12.00 a 5 quart jug months & months ago at Wally World on sale. She was actually thinking of trading in the car on a new Subaru here lately & I told her that she is crazy & would just be wasting her money. Her Baja is garage kept, pretty rare, & we know just what & how maintenance has been performed since day one. She bought the car brand new & with its low mileage -- I want her to save her money until it becomes a problem or money pit for her.
_________________________
00 Dodge Ram 5.2L 4x4 Edge 10W30 FU (91K)
08 Acura TL Type S 3.5L PUPP 5W20 FU (101K)
17 Jetta TSI SE 1.4L Turbo - Edge 0W40 FU (Hers) (4K)

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#4538896 - 10/10/17 09:46 AM Re: 2005 Forester [Re: HowAboutThis]
bluesubie Offline


Registered: 08/04/03
Posts: 2280
Loc: NJ
With some google searches, you may be able to find some old n/a EJ Subaru uoa's here. There were some on conventional running to about 8k, IIRC, and there have been some synthetic uoa's anywhere from 10-15k miles. BITOG user Al has some 10-12k (IIRC) oci's on Wal Mart Super Tech in an n/a Forester.

Personally, I used Pennzoil conventional High Mileage or Valvoline Max Life in a 1999 Outback and 2000 2.5RS anywhere from 6-8k mile intervals. I only did one or two random uoa's and they were fine. Regardless of the uoa, the max that you should run the OEM filter for is 7,500 miles.
_________________________
'04 Subaru Forester 2.5XT
Castrol Edge 0W-40

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#4538901 - 10/10/17 09:50 AM Re: 2005 Forester [Re: HowAboutThis]
SubieRubyRoo Offline


Registered: 05/14/12
Posts: 1141
Loc: Winchester, Indiana
I like the Baja too but I would sell it for a Forester. For some reason, Baja's sell for waaaay more than they should be worth, for a 12-year-old chick-up truck.

NA Subaru EJ25s are fine on dino or synthetic, and do not have the 3750 or 6k recommendation. Some do consume less oil on syn, so your choice there. If you are looking for ultimate inexpensiveness and live near a Rural King (or partner), pick up the Harvest King full synthetic (Dexos1 approved) 5W-30, a Fram XG3593A, and change the oil every 5k and the filter every 10k. These engines with decent oil and maintenance will make 300k easy with timing belt changes on time. My 01 Forester is at 220k and will still get 27.5mpg over a full tank, and uses maybe 1/2 cup over a 5k interval. Other than the long-ago-resolved HG issue on 1998-2003 EJ25s, the NA versions are anvils.

Subaru Coolant Conditioner is the official name of the additive, it is a rebranded Holt's Radweld.

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#4538905 - 10/10/17 09:54 AM Re: 2005 Forester [Re: HowAboutThis]
JTK Offline


Registered: 08/14/03
Posts: 10592
Loc: Buffalo, NY
With this type of driving, an EJ253 will live a long happy life on 7500 OCIs with conventional 5w30. Will it be better off on full synthetic? Who knows. Maybe for extreme cold starts. The drop to a 6000 mile OCI recommendation was for the newer FB series engines where oil consumption was more prevalent.
_________________________
2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)

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#4539071 - 10/10/17 12:32 PM Re: 2005 Forester [Re: SubieRubyRoo]
thorromig Offline


Registered: 03/22/12
Posts: 804
Loc: BerksCounty/Pa.
I like the chick-up truck comment. I will have to tell Bev that one, she will laugh. Its due for an oil change again & I think im gonna run the Quaker State Syn Blend High Mileage 5W30 in it this run; I see they have it priced at my Wall World for $15.44 plus tax for the 5 quart jug. We run the Chevron Techron Fuel System Cleaner every 3000 miles also for routine maintenance due to her running strictly cheap 87 octane gas at "all" times.
_________________________
00 Dodge Ram 5.2L 4x4 Edge 10W30 FU (91K)
08 Acura TL Type S 3.5L PUPP 5W20 FU (101K)
17 Jetta TSI SE 1.4L Turbo - Edge 0W40 FU (Hers) (4K)

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