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GR86 General Topics (2nd Gen 2022+ Toyota 86) General topics for the GR86 second-gen 86


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Old 09-28-2022, 11:54 AM   #841
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Originally Posted by dreamwonder View Post
For reference, oil filters used:
90915-YZZS1
Sorry that was directed at Tcoat, not you.
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Old 09-28-2022, 12:00 PM   #842
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The US Toyota site shows SU00308412 for the GR86 only. It shows your part number for 13-20. Where did you get the part number?
Ya looks like I entered the same year twice instead of 13 and 22!
The filter in the GR86 is only used in the GR86! Unfortunately I can see warranty denial based just on the wrong filter.
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Old 09-28-2022, 12:01 PM   #843
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Really sorry to hear, @dreamwonder. If there's a chance the data on overrev was bogus I would do all I could to fight that. Maybe have a second dealer look at it, if that's a thing that can be done now.

The oil definitely didn't have anything to do with it. Filter, I'm not sure. I didn't realize 1st gen had a different oil filter. 2nd gen uses same PN as my WRX which was a nice bonus as I had a bunch.

I doubt they would have been able to tell that oil was 0w30 from a UOA considering it had a few track miles on it. Maybe if it was brandy-new I guess. These engines shear oil down a grade in less than 1000 miles (or at least the turbo FAs do.. not sure about NA.) *edit* I see he told them, so that 'splains it.
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Old 09-28-2022, 12:13 PM   #844
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Originally Posted by Tcoat View Post
Interesting. Both gens use the same part number filter (90915-YZZF1).
The warranty language says "comparable" so any properly speced filter should be fine.
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bumping this thread as it took me FOREVER to find it.

Doing the first oil change on my GR, our parts department now stocks the JAPAN made oil filters, AS WELL as the TAIWAN built. The parts look up now lists the Japan made for GR86

The toyota Canada part number for the japanese built oil filter is SU003-08412, and printed on it is 15208AA130, the same oil filters this and the first generation came with from the factory
The japan built filters have more pleats than the USA/Taiwan. Toyota Canada only list these as compatible on the GR now. Is there a reason, or is it due to supply chain etc? Who knows. I know it is trivial, nitpicky... But if your dealer told you the old filter is ok to use, well technically its not
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Old 09-28-2022, 12:14 PM   #845
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Ya looks like I entered the same year twice instead of 13 and 22!
The filter in the GR86 is only used in the GR86! Unfortunately I can see warranty denial based just on the wrong filter.
oops I started a reply, got busy, then saw this after replying! :P
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Old 09-28-2022, 12:15 PM   #846
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Quote:
Originally Posted by Robertw View Post
Regardless how this motor blew up, at this point it's overall concerning the number of motors that have popped.
How many have popped?

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I understand it's technically not that many, but it seems to be growing.
Of course it's growing. One could say that about every car model ever made.
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Old 09-28-2022, 12:32 PM   #847
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How many have popped?


Of course it's growing. One could say that about every car model ever made.
This will be 21 reported on here. Some we just know they failed (10 mentioned by Opie through the Subaru service contact) and a couple may be repeated by being listed separately here and on other social media but the number will be in the ball park.
Even if you take that number to 100 it comes out to just over .5% of the sales (BRZ and GR86 combined)
Not cool and certainly unpleasant but not the ravaging plague it appears to be either.
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Old 09-28-2022, 12:49 PM   #848
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This will be 21 reported on here. Some we just know they failed (10 mentioned by Opie through the Subaru service contact) and a couple may be repeated by being listed separately here and on other social media but the number will be in the ball park.
Even if you take that number to 100 it comes out to just over .5% of the sales (BRZ and GR86 combined)
Not cool and certainly unpleasant but not the ravaging plague it appears to be either.
Also it's still early, most cars are just mildly street driven, still "low" mileage, and as more cars are tracked we'll see how these motors hold up. I'm also comparing my interest in this to when I was purchasing my 2007 Si in 2006, and following the forums closely then. Anecdotally, I did not observe many issues with the k20, transmissions grinding yes, but at the same time the Si's production numbers were significantly higher. The few that blew up, it was almost always over revs, because honda owners.
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Old 09-28-2022, 12:54 PM   #849
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Originally Posted by Tcoat View Post
This will be 21 reported on here. Some we just know they failed (10 mentioned by Opie through the Subaru service contact) and a couple may be repeated by being listed separately here and on other social media but the number will be in the ball park.
Even if you take that number to 100 it comes out to just over .5% of the sales (BRZ and GR86 combined)
Not cool and certainly unpleasant but not the ravaging plague it appears to be either.
Thanks for keep track! have you been keeping track of how many were accompanied by an over rev?
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Old 09-28-2022, 01:18 PM   #850
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Thanks for keep track! have you been keeping track of how many were accompanied by an over rev?
Unfortunately I will not use that as a data point. It is just human nature to want to blame something else so the "I did nothing wrong" statements will skew things too far. On the other hand it is just such an easy "oh there's your problem we don't need to dig any further" thing for the service departments to do.
Of what we do know there were 4 (including Dream) where the over rev was held against the owner as at least a partial cause. The first was the guy that eventually got a new engine, two of the videos and now Dream.

I would be more inclined to lean towards overrev if the main issue was thrown rods over spun bearings though. Rods don't do well with sudden rev increases but bearings are more likely to spin because of lubrication. Not to say that it can't happen but just isn't as probable. This is why I wondered what Dream's actual failure was.
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Old 09-28-2022, 01:29 PM   #851
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Also it's still early, most cars are just mildly street driven, still "low" mileage, and as more cars are tracked we'll see how these motors hold up. I'm also comparing my interest in this to when I was purchasing my 2007 Si in 2006, and following the forums closely then. Anecdotally, I did not observe many issues with the k20, transmissions grinding yes, but at the same time the Si's production numbers were significantly higher. The few that blew up, it was almost always over revs, because honda owners.
There are already almost 14,000 of them on the road and no doubt some have many miles already so we have a good base for the data.
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Old 09-28-2022, 02:10 PM   #852
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I'd need to see the actual ratio, but I don't think 5th at 8300 RPM supports 129 mph.
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Old 09-28-2022, 02:19 PM   #853
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I'd need to see the actual ratio, but I don't think 5th at 8300 RPM supports 129 mph.
Easily.

https://www.*********/threads/gr86-gearing.1451/
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Old 09-28-2022, 02:50 PM   #854
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That got my attention too. Gear selection is calculated by the ECU only with enough sampled vehicle, and engine speed data while the clutch pedal is released. I'm thinking this was a money shift into third but for that brief moment, the ECU did the best it could with garbage input. Educated guesswork is bullshit until verified.
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