2011 Subaru STi - need oil filter suggestion

[trabuccomlfrd]

Originally Posted By: webfors
Originally Posted By: Soobs
The Subaru of America OEM (Honeywell) oil filters are fine. I've been running them for 68,000 miles now. No issues at all with the filters or car.

Some pictures I posted a while back...

https://bobistheoilguy.com/forums/posts/1843143/


+1. Nothing wrong with the OEM filter. Well made, strong construction and has the right bypass spec.

My next choice would be a Purolator classic or P1, 14612. Well made little filter.

I have 2 black tokyo roki's left, and about 4 Purolators. I used an OEM for an OCI and cut it open, and was satisfied with the construction.

I'll use up what I have and switch to the Subaru OEM. Easy to get and backed by Subaru.

basicly you are supporting the use of fram filters

 

[webfors]

Originally Posted By: trabuccomlfrd
Originally Posted By: webfors
Originally Posted By: Soobs
The Subaru of America OEM (Honeywell) oil filters are fine. I've been running them for 68,000 miles now. No issues at all with the filters or car.

Some pictures I posted a while back...

https://bobistheoilguy.com/forums/posts/1843143/


+1. Nothing wrong with the OEM filter. Well made, strong construction and has the right bypass spec.

My next choice would be a Purolator classic or P1, 14612. Well made little filter.

I have 2 black tokyo roki's left, and about 4 Purolators. I used an OEM for an OCI and cut it open, and was satisfied with the construction.

I'll use up what I have and switch to the Subaru OEM. Easy to get and backed by Subaru.

basicly you are supporting the use of fram filters


I don't look at the name, I look at the construction by opening them up to judge for myself.

BTW: Honda and Subaru both support the use of these filters. Two smart companies you can trust. Holds more clout than the latest Fram bashfest on an internet forum.

I've opened a standard Fram orange can that had 25k miles on it. It held up well considering the conditions.

From one of my favorite songs... "DON'T BELIEVE THE HYPE!!"

 

[Gary Allan]

Quote:
BTW: Honda and Subaru both support the use of these filters. Two smart companies you can trust. Holds more clout than the latest Fram bashfest on an internet forum.



I'd like to make some distinctions to your (pretty much) generic/blanket assertion.

Honda and Subaru use OEM spec'd filters produced by Fram. I'm unsure if they do the assembly line filters, but the OEM aftermarket filters are built by Fram to Honda and Subaru's specification.

This is in no way any endorsement of just "buying a Fram" off the shelf, no more than buying a SuperTech is the trick/smart thing to do just because Champ happens to make the OEM assembly line filters and some OEM aftermarket filters for a couple of the Big 3. (I have nothing against Super Tech filters). Champ makes the bid job bean counter Ford filter, but Purolator was chosen as the OEM aftermarket producer.

There's no reason to believe that the filter available from any of the retail orange walls is identical to the one that the parts man hands you at the dealer.

Is a Purolator Classic identical in every way to the MotorCraft filter that shares its size and thread? Perhaps, but while the Purolator Classic is marketed to meet or exceed OEM spec's, the MC will most assuredly meet all of Ford's OEM aftermarket specifications. An obvious example would be the "S" suffix on some MC filters. A Purolator Classic cannot match it, yet "meets or exceeds" OEM spec's.

There's no reason to think that Honda/Subaru DNA infected all of Fram just because they chose Fram to make their filters.

 

[AuthorEditor]

Quote:
There's no reason to think that Honda/Subaru DNA infected all of Fram just because they chose Fram to make their filters.


Another great Gary Allan quote! Isn't it interesting how brands have infected our view of the world? We use a few letters or words to make a determination on whether or not something is good or bad or suitable, rather than the actual characteristics of the product. To some the stamp of Honda or Subaru is enough information to applaud, while to others the word Fram is all they need to boo.

 

[Sayjac]

Quote:
To some the stamp of Honda or Subaru is enough information to applaud, while to others the word Fram is all they need to boo.
While I don't 'boo' the A-02 (actually have used and defended the filter/adbv in this thread), I won't pay dealer prices either for what I consider to be a serviceable filter with a silicone adbv and Honda name, nothing more. While it is true they are not an orange can, closer to a Tough Guard in construction with a few differences. But, still with the Fram/Honeywell trademark fiber endcap construction. Based on construction, if they sold for ~$3.50 everyday I might give them greater consideration.

IMO, I can do better with an aftermarket filter choice for the same or less money as the A-02, and that's the bottom line.

But no, I've never thought the A-02 to be an orange can clone. One could buy the Microgard 'black can', to get that.

 

[BeanCounter]

Originally Posted By: sicko

Another tip, after parking, let the car idle for 20-30 seconds before turning it off. The oil flowing will help to cool down the turbo and help extend its life


I'm not sure that this is completely true and/or applicable to a lot of turbo vehicles, especially that are oil and water cooled. If it has been run extremely hard I probably wouldn't cut it right off though.

 

[Gary Allan]

It's even applicable on non-turbo engines if they've been run at high speed. Running a Euro alloy where your temp gauge extends beyond normal (totally allowed) and then pulling into the service area and shutting it down ..well, it's a bad thing. The coolant (of whatever componsition, oil or water) was traveling through the engine and keeping it cool "just in time" at the flow rate. Abruptly shutting down would leave hot spots that were only tolerable due to that JIT cooling.,

..but, I agree... the typical drive through the development (or whatever) would bring everything within the reserve capacity of the system.

 

[Al]

Originally Posted By: trabuccomlfrd

basicly you are supporting the use of fram filters

Considering that ram has sold more filters than all other companies combined (probably) how many lawsuits have been awarded against defective filters (from Fram).

No doubt the old Rocki Filters were the best but I would consider the OEM ones. Subaru has a very high bypass (I believe 27 psi) I am not aware of any filters specked for Subaru meeting that value.

 

[Bottom_Feeder]

Originally Posted By: Al
Subaru has a very high bypass (I believe 27 psi) I am not aware of any filters specked for Subaru meeting that value.

Pretty much any filter designed specifically for a Subaru engine should have it. I don't know about the new smaller ones, but for sure Purolator's filters for the older larger design (like my car uses) has the correct bypass setting.

 

[subiedriver]

I run Purolator Pure P1 filters on my Subaru, its an '04 N/A 2.5. The P1 has a bypass spec of 20-25 psi.

 

[WagonBoss]

Originally Posted By: ZeeOSix
Originally Posted By: WagonBoss
There is nothing inherently wrong with the OEM filter. For a turbo application it is probably the best choice.


Why would the OEM filter be best for the turbo application?


It is the only one that is sized correctly and offers the correct OEM PSID rating. At a 3750 OCI it is good enough and no warranty hassles.

 

[Al]

Originally Posted By: Bottom_Feeder

Pretty much any filter designed specifically for a Subaru engine should have it. I don't know about the new smaller ones, but for sure Purolator's filters for the older larger design (like my car uses) has the correct bypass setting.

I see above where the Purolator has the higher setting. Last time I checked the Wix was like 13 Psi. I recall others like the Mobil 1 and Fram were in the same low range. There is a discussion of the subject on BITOG somewheres.

 

[ZeeOSix]

Originally Posted By: subiedriver
I run Purolator Pure P1 filters on my Subaru, its an '04 N/A 2.5. The P1 has a bypass spec of 20-25 psi.


What filter number is that one?

 

[ZeeOSix]

Originally Posted By: WagonBoss
Originally Posted By: ZeeOSix
Originally Posted By: WagonBoss
There is nothing inherently wrong with the OEM filter. For a turbo application it is probably the best choice.


Why would the OEM filter be best for the turbo application?


It is the only one that is sized correctly and offers the correct OEM PSID rating. At a 3750 OCI it is good enough and no warranty hassles.


So if the after market filter makers list an applicable filter for these high oil flow volume Subarus, then I'd think they would have addressed the bypass setting issue.

It could be that the OEM Subaru oil filter is so restrictive and/or has a very long OCI spec that it has a very high bypass setting. I can't imagine any other reason why it's set so high. The more free flowing a filter is and the lower the OCI is, the lower the bypass setting can be.

Where's that thread that has been linked a couple of times lately that shows the flow vs pressure delta of a PureOne up to 12 GPMs? I think the delta P was around 5 PSI at 12 GPM with hot oil, and I think the turbo Subaru's are specified around 12 GPM max.

Update - found the thread:
http://www.bobistheoilguy.com/forums/ubb...451#Post1619451

 

[subiedriver]

My car takes a P1 14460.

 

[WagonBoss]

I have no idea why it is set so high either. Or why many Subarus continue to run on just about any filter spec. The repair manual page I was able to keep a copy of shows at 176F oil temp the pump should flow 4.9 qts at 14psi at 600 rpm and 49.7 qts at 43 psi at 5000 rpm. By pass filter opening for the oil filter is 23.2 psi

It is a mystery to me as to why there aren't more aftermarket filter choices with the factory spec other than the engineers feel it isn't important enough to cover the spec. Though a response from a Hastings engineer was he would not run a 14PSID spec'd filter in an application calling for a 23.2 PSID. But yet, Hastings doesn't offer a filter that meets the 23.2 spec.

Subaru has had several OEM builders over the years. Purolator, Tokyo Roki, and now Honeywell. Purolator still makes the 14460 filter (3.15 OD vs 2.68 OD) for the older models with the 23 PSID by pass spec, which just so happens to also fit the newer non aspirated engines. The Turbo models have an oil cooler which interferes with the mounting of the larger filter.

 

[trabuccomlfrd]

Originally Posted By: webfors
Originally Posted By: trabuccomlfrd
Originally Posted By: webfors
Originally Posted By: Soobs
The Subaru of America OEM (Honeywell) oil filters are fine. I've been running them for 68,000 miles now. No issues at all with the filters or car.

Some pictures I posted a while back...

https://bobistheoilguy.com/forums/posts/1843143/



+1. Nothing wrong with the OEM filter. Well made, strong construction and has the right bypass spec.

My next choice would be a Purolator classic or P1, 14612. Well made little filter.

I have 2 black tokyo roki's left, and about 4 Purolators. I used an OEM for an OCI and cut it open, and was satisfied with the construction.

I'll use up what I have and switch to the Subaru OEM. Easy to get and backed by Subaru.

basicly you are supporting the use of fram filters


I don't look at the name, I look at the construction by opening them up to judge for myself.

BTW: Honda and Subaru both support the use of these filters. Two smart companies you can trust. Holds more clout than the latest Fram bashfest on an internet forum.

I've opened a standard Fram orange can that had 25k miles on it. It held up well considering the conditions.

From one of my favorite songs... "DON'T BELIEVE THE HYPE!!"

i have a subie honeywell filter unused cut open and it is a replica of a fram, paper end caps in all. the pleats are all wavy even though it is unused, i would never use one. dont belive me, i will post pics if you so desire

 

[webfors]

Umm.. I already mentioned I've opened several of them up. I know exactly how they're constructed. Wavy media in the blue OEM? Never seen it unless someone tried to crush it. I felt the same way you did when I was a bitog newb, but time heals all biases

And Gary... I was referencing the Subaru OEM. Not the orange can, not that it really matters. And you know very well they aren't the death traps people make them out to be. I'd use one over an Ecore any day

Are there alternatives that make people feel all warm and fuzzy because of their superior bionic-super-nasa-injected-filter-of-choice... sure. If that's what you need to sleep at night go for it... whatever floats your boat. At the end of the day it makes very little difference in your standard passenger car.