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Old 03-27-2009, 03:05 PM   #1
AlxSti
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Impreza WRX STi Where to buy Subaru Extra-S gear oil by the quart?

Where to buy Subaru Extra-S gear oil by the quart?

or should i just gonna grab some valvoline 75w90 dino from napa?

This is STi specific.
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Last edited by AlxSti; 03-28-2009 at 11:18 AM. Reason: responses...
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Old 03-27-2009, 04:50 PM   #2
rexman2002
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you'll grind. Post back with results.

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Originally Posted by AlxSti View Post
just gonna grab some valvoline 75w90 dino from napa
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Old 03-27-2009, 07:05 PM   #3
elevenpoint7five
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turninconcepts.com
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Old 03-27-2009, 07:12 PM   #4
T Wrex--OH
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Please don't use Valvoline, I beg. That stuff is trash, straight up. You can buy extra-s by the quart for about the same as the Valvoline at 5starperformance.com
Btw, turn in concepts charges too much for the extra-s, at least last time I checked.
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Old 03-27-2009, 08:28 PM   #5
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Quote:
Originally Posted by T Wrex--OH View Post
Please don't use Valvoline, I beg. That stuff is trash, straight up. You can buy extra-s by the quart for about the same as the Valvoline at 5starperformance.com
Btw, turn in concepts charges too much for the extra-s, at least last time I checked.
the Castrol HypoyC is better
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Old 03-28-2009, 11:17 AM   #6
AlxSti
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^^ i've been reading soooo many mixed reviews for what to use in the sti trans. some swear by motul, others say it causes grinds after 10k or so. some swear by the oem super-s stuff.. some say its just relabeled valvoline. and some swear by scottys cocktail for the WRX, but not for the STi.

this is STI specific here... so does anyone have an actual answer on whats best? I used valvoline 75w90 in my 04 sti trans.. and I had a 4th-5th gear grind, but i chalked it off to the crappy synchros in the 04 6 speed transmissions. i have zero issues with my 06, but im reaching that 30k mark and i wanna get some fresh gear oil in there.
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Old 03-28-2009, 11:22 AM   #7
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THERE IS NO BEST FLUID. and I don't car if you have a 5MT or 6MT. Read the Maintenance FAQ located inside the Unabomber's Manifesto at the top of this forum for the most popular tranny fluids. We have been talking, debating, e-thugging, and drive by shooting this topic since 1883, choose one of the four and if you like it, use it. If you don't, try one of the others.
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Old 03-28-2009, 11:35 AM   #8
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Quote:
Originally Posted by AlxSti View Post
^^ i've been reading soooo many mixed reviews for what to use in the sti trans. some swear by motul, others say it causes grinds after 10k or so. some swear by the oem super-s stuff.. some say its just relabeled valvoline. and some swear by scottys cocktail for the WRX, but not for the STi.

this is STI specific here... so does anyone have an actual answer on whats best? I used valvoline 75w90 in my 04 sti trans.. and I had a 4th-5th gear grind, but i chalked it off to the crappy synchros in the 04 6 speed transmissions. i have zero issues with my 06, but im reaching that 30k mark and i wanna get some fresh gear oil in there.
I really like Motul 300 Gear, and Motul 90PA in the rear diff (STI, WRX use Motul 300 in both). But thats just me. If you arent havent ANY issues now I would go with whats in it now you know? If it aint broke dont fix it.

While the lubrication of the transmission is very important, its not like the motor. There no by products of combustion eating away at anything. You need something that works well with the synchros but still lubricates the gears. And it sounds like the Subaru fluid has been working great for you...
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Old 03-28-2009, 11:37 AM   #9
MattD87
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Just buy the barrel and sell the rest or save it. You'll get raped buying it by the quart..
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Old 03-28-2009, 11:50 AM   #10
DrSaabaru
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Old 03-28-2009, 11:57 AM   #11
SYBugeye
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go to your dealership and buy the BG 75w90 it is expensive but it works great
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Old 02-01-2013, 08:08 PM   #12
SubyStew
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Use the oem extra-s. I've always used it in my STi an 04 and 07 and never had any complaints. Runs so smoooooooth. Everybody here in Abq, NM does the same. Some here locally say it has helped with syncro issues and made transitions smoother. Which was in a 08 WRX i believe, but cant go wrong, EXTRA-S IS THE BOMB!
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