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Old 10-17-2007, 04:13 PM   #1
OneArmedScissor
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Join Date: May 2002
Chapter/Region: BAIC
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Default about to do a 6mt tranny and diff fluid change...where to get fluid?

where has the special subaru synthetic and the rear diff dino oil that I need for my 6mt in town?

Taking car to engine logics tomorrow for some maintenance and I wanted this done with the best fluids for the 6mt and I'm a bit clueless as to the 6spd stuff.
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Old 10-17-2007, 04:19 PM   #2
Butterz
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I would say either Royal Purple or the Subaru synthetic stuff. Chris sold me on the Royal Purple when he put the PPG's in.

Vatozone carrys Royal Purple, and I think you'll have to go to the dealership for the Subaru stuff.
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Old 10-17-2007, 04:29 PM   #3
Locky1138
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subaru stuff has detergents in it. i've always been told to avoid that stuff. whatever you get make sure it has a friction-additive, some idiot put "normal" stuff in my 5mt and every gear ground like hell because the syncros wouldnt catch, untill they put Pensoil Syncro-mesh stuff in it.

by the way... GC8 STI v5? i'm a bit curious about your car.
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Old 10-17-2007, 04:34 PM   #4
Rancid
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Oh! I need some Subaru synthetic fluid too (its by far the best)! Want to pitch in together and buy a big jug of it?
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Old 10-17-2007, 06:19 PM   #5
ai42
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There is a coctail that many have used in 5mt Subarus.

1 Qt Redline Lightweight Shockproof Gear Oil
1 Qt Penzoil Synchromesh
1.5 Qt Castrol HypoyC

I'm not sure what capacity etc the 6mt uses but I can't see why if you preserved the same ratio why it wouldn't work. Also you can pickup Synchromesh/HypocC at Autozone/Orielly respectively.
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Old 10-17-2007, 07:13 PM   #6
Rancid
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Cocktails are bad. Mixing oils is bad and makes a mess inside of transmissions.
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Old 10-17-2007, 09:16 PM   #7
ericwilliams
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Definately stick with the OEM synthetic, I've never heard of anyone having a failure due to the use of Subaru's GL5. Change it every 15k miles and you can re-use the metal washer found on the drain plug. Make sure to clean off the metal debris that will collect on the magnet. Pretty straighforward service shouldn't cost you more than $50 if you have it done at the dealership. If doing it yourself you'll need a Torx T-70 and I think its only offered in a 1/2 inch drive (although some older models used a hex head 19mm) take a look for yourself and see. If having a shop do the service advise them to not overtighten the drainplug because they can be a PAIN to get off if tightened more than is needed(just a little past the point where the plug's flange/washer meets up with the case)
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Old 10-17-2007, 10:13 PM   #8
MarkRx
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subaru 75-90 extra-S in the gear box. you're on your own in the diff. /close thread
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Old 10-18-2007, 01:43 AM   #9
nxttruck2002
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Gear Box:


Rear diff:
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Old 10-21-2007, 01:07 AM   #10
chudlo
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^^^^^If you have a 6mt use the above only!



Do not use Royal Purple in your Subaru transmission. RoyalPpurple doesn't suggest using it, according to my dealer.
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