fishbone Posted November 17, 2010 Share Posted November 17, 2010 The RX8 spec sheet in post #5 list the bypass spec for both filters. 2008 and prior is 11.4 - 17.1 psi 2009 + is 20.3 - 26.1 psi Isn't 26 too high? I thought the OEM is rated at 20-23? Link to comment Share on other sites More sharing options...
dr_sharp Posted November 18, 2010 Share Posted November 18, 2010 If we keep speculating and adding to this thread, I'm all but certain the non-OEM filter will perform better than OEM. I've actually heard that, during the design phase, Subaru engineers start a thread on a forum and just add speculation until they've talked themselves into an optimal design. lol Link to comment Share on other sites More sharing options...
SBT Posted November 18, 2010 Share Posted November 18, 2010 If we keep speculating and adding to this thread, I'm all but certain the non-OEM filter will perform better than OEM. I've actually heard that, during the design phase, Subaru engineers start a thread on a forum and just add speculation until they've talked themselves into an optimal design. Never underestimate the power of stupid people in groups. - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted November 22, 2010 Mega Users Share Posted November 22, 2010 It is a lot cheaper than R&D! Link to comment Share on other sites More sharing options...
farberio Posted November 24, 2010 Share Posted November 24, 2010 Rotaries require oil to lubricate the apex seals. I believe the RX7 motors would actually inject oil to keep the rotor walls lubricated. That's correct. Link to comment Share on other sites More sharing options...
farberio Posted November 24, 2010 Share Posted November 24, 2010 If we keep speculating and adding to this thread, I'm all but certain the non-OEM filter will perform better than OEM. I've actually heard that, during the design phase, Subaru engineers start a thread on a forum and just add speculation until they've talked themselves into an optimal design. While I understand what your saying, be aware that just because the OEM's do something doesn't mean it is the best or most optimal way. Working in a design environment I can tell you that some decisions are made for very strange reasons, however cost is usually the biggest factor. Link to comment Share on other sites More sharing options...
dr_sharp Posted November 24, 2010 Share Posted November 24, 2010 While I understand what your saying, be aware that just because the OEM's do something doesn't mean it is the best or most optimal way. Working in a design environment I can tell you that some decisions are made for very strange reasons, however cost is usually the biggest factor. You are correct. But who is to say that Mazda OEM is better than Subaru OEM? Does Subaru "cheap out" more so than Mazda? It doesn't matter how you look at it, without some serious testing and analysis far beyond the education and experience of your average forum dweller, nobody is going to conclusively show that the non-OEM filter is better. lol Link to comment Share on other sites More sharing options...
farberio Posted November 24, 2010 Share Posted November 24, 2010 without some serious testing and analysis far beyond the education and experience of your average forum dweller, nobody is going to conclusively show that the non-OEM filter is better. This is also very true. Link to comment Share on other sites More sharing options...
Drew888 Posted November 25, 2010 Share Posted November 25, 2010 You are correct. But who is to say that Mazda OEM is better than Subaru OEM? Does Subaru "cheap out" more so than Mazda? It doesn't matter how you look at it, without some serious testing and analysis far beyond the education and experience of your average forum dweller, nobody is going to conclusively show that the non-OEM filter is better. I agree, and ya know...you only have to look as far as the number of holes and stop right there.We know the OEM blue is good so even if you were to somehow discern that another was slightly better I'll bet flow will edge out that small difference. [URL="http://legacygt.com/forums/vbpicgallery.php?do=view&g=1586"VbGallery/URL] Link to comment Share on other sites More sharing options...
ChruiSSer Posted April 4, 2012 Share Posted April 4, 2012 Alright guys...I've used the Mazda filter on my Legacy twice with no adverse effects. (Filter N3R1-14-302). I've been using the Blue honeywell filter and quite honestly, I'm dissapointed at best. Between my wifes, sisters, and my vehicle, about 15 oil changes with the honeywell filter, 6 times I've had sealing issues where it leaks from the o-ring itself. Realistically it may leak out a full quart over 1,000 miles, but that's unacceptable in my opinion. Fast forward to Monday night, I did an oil change on the wagoon. Get home and see some smoke as I pulled into the driveway. Checked underneath and sure enough filter leaking. I had 1 last RX-8 filter and brought it to work with me. I checked the NEW 2011+ Forester Filter (15208AA160). It looks IDENTICAL to the RX-8 filter. It's manufactured by Tokyo Roki and appears to be the exact same size. So here's what I did. I looked into the specs for the 2012 Forester and my 2005 GT. I printed out the specs. The new filter (which I believe to be exactly the same as the RX-8, vs the specs for the factory GT which the honeywell filter meets. Here's a few pics of the spec sheets and filters. And just to be clear what I'm getting at is the 2012 Forester filter = 2009 Mazda RX-8 Filter. The 2012 Forester filter specs = 2005 Legacy GT filter specs. Since A=B, B=C A=C. http://i9.photobucket.com/albums/a74/chruisser/3c5578f1.jpg http://i9.photobucket.com/albums/a74/chruisser/13401c34.jpg http://i9.photobucket.com/albums/a74/chruisser/f43b512b.jpg http://i9.photobucket.com/albums/a74/chruisser/03f5af4d.jpg http://i9.photobucket.com/albums/a74/chruisser/abdda6e1.jpg http://i9.photobucket.com/albums/a74/chruisser/3c5578f1.jpg So far I've been running the Forester filter for about 80 miles with no issues. Hope this helps and maybe answers some questions. Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted April 4, 2012 Mega Users Share Posted April 4, 2012 That's interesting. I didn't know the new forester had a different filter. Looks like a good reason to keep using the mazda filter since there's a Mazda dealership that is much more convenient for me. Link to comment Share on other sites More sharing options...
jackfortune Posted April 5, 2012 Share Posted April 5, 2012 Mazda filter much better than Subaru, IMHO. I'm running the Mazda filters in my LGT for over a year. No problems..... Link to comment Share on other sites More sharing options...
SubOperator Posted April 5, 2012 Share Posted April 5, 2012 Original 05 LGT Subaru OEM oil filter part # (made by Tokyo Roki) is 15208AA100. Still have few of them left. Both 2012 Subaru Forester and Mazda filter appear to be taller than 15208AA100 which is good. More filtering surface/material. Thanks for sharing, now we can at least price shop. 2005 LGT Wagon Limited 6 MT RBP Stage 2 - 248K 2007 B9 Tribeca Limited DGM - 258K SOLD - 2005 OB Limited 5 MT Silver - 245K SOLD - 2010 OB 6 MT Silver - 205K Link to comment Share on other sites More sharing options...
ChruiSSer Posted April 6, 2012 Share Posted April 6, 2012 Original 05 LGT Subaru OEM oil filter part # (made by Tokyo Roki) is 15208AA100. Still have few of them left. Both 2012 Subaru Forester and Mazda filter appear to be taller than 15208AA100 which is good. More filtering surface/material. Thanks for sharing, now we can at least price shop. Yea that's the main reason I went the Mazda filter route. Now I can get an in house (I work for a Suby dealer) filter. Both filters appear to be IDENTICAL, made by the same manufacturer. Link to comment Share on other sites More sharing options...
authenticamd Posted April 19, 2012 Share Posted April 19, 2012 Subaru parts warehouse says part # 15208AA160 is for "2012 Impreza (Excluding WRX & Sti)" I wonder if they have it wrong... Link to comment Share on other sites More sharing options...
outahere Posted April 21, 2012 Share Posted April 21, 2012 The new Wix 57712 and NAPA Gold 7712 have a 23 psi bypass spec. http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2548956&page=1 Link to comment Share on other sites More sharing options...
HAMMER DOWN Posted April 21, 2012 Share Posted April 21, 2012 For the taller oil filter like 2009-2011 RX-8. Is WIX 57356 Oil Filter & Asmoil Ea15K13 I been running the Amsoil EA15k13 on my G/F's 05 WRX for almost 150k. With on issue. Mike Mileage:331487 Retired/Sold Link to comment Share on other sites More sharing options...
islandborn Posted April 24, 2012 Share Posted April 24, 2012 My '12 LGT? Can it use them? Would it be wise? Link to comment Share on other sites More sharing options...
SubOperator Posted April 26, 2012 Share Posted April 26, 2012 Interesting enough that SOA still supplies Tokyo Roki black filters for all 6 cylinder engines - Tribeca and 3.6 Legacy/Outback. I discovered that I am out of 6 cylinder engine Tokyo Roki oil filters for Tribeca and then found them at the dealer ! part # 15208AA031. 2005 LGT Wagon Limited 6 MT RBP Stage 2 - 248K 2007 B9 Tribeca Limited DGM - 258K SOLD - 2005 OB Limited 5 MT Silver - 245K SOLD - 2010 OB 6 MT Silver - 205K Link to comment Share on other sites More sharing options...
SBT Posted April 26, 2012 Share Posted April 26, 2012 When my supply of the TR 15208AA100 run out, I will replace them with the 2012 Forester filter... - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
SubOperator Posted April 26, 2012 Share Posted April 26, 2012 When my supply of the TR 15208AA100 run out, I will replace them with the 2012 Forester filter... Sounds like a good plan. 2012 Forester part is 15208AA160 afaik. Subie bucks are excellent for this kind of stuff. But I am still ~60K away from running out of good old TR 15208AA100 2005 LGT Wagon Limited 6 MT RBP Stage 2 - 248K 2007 B9 Tribeca Limited DGM - 258K SOLD - 2005 OB Limited 5 MT Silver - 245K SOLD - 2010 OB 6 MT Silver - 205K Link to comment Share on other sites More sharing options...
SBT Posted April 27, 2012 Share Posted April 27, 2012 ^ Think I'm ~45K away - started with 25 TR 100s, down to 15. May still pick up some of the new TRs, just to make sure they don't go "off" the market again. - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
VermontGT Posted April 28, 2012 Share Posted April 28, 2012 Am I missing a huge section of threads on this forum that point to inferior-quality oil filters as a cause of engine failure? Link to comment Share on other sites More sharing options...
jackfortune Posted April 28, 2012 Share Posted April 28, 2012 NOT.....we're talking turbo failure.... Link to comment Share on other sites More sharing options...
VermontGT Posted April 28, 2012 Share Posted April 28, 2012 ....aaaaaaaaaaaand what does turbo failure lead to? Link to comment Share on other sites More sharing options...
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