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surok
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/15 15:34:28 (permalink)
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brutal is the correct term.

Kôsoku bosu
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Dr.J
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/15 16:11:24 (permalink)
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Hmmm, every resource I've found says capacity is 2.6 litres for the gearbox LSD transaxle...

Jay
Morley, WA
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surok
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/15 16:13:58 (permalink)
+1 (1)
well... buy 4 just to be sure. and fill it till it pours out the filler port :)

Kôsoku bosu
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dasic1
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/15 16:18:56 (permalink)
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They must have all been talking about the non turbo box

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#34
Dr.J
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/15 16:20:31 (permalink)
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Nope, the turbo box.
Weird.
Anyway, I'll just fill it up and take note of how much goes in...

Jay
Morley, WA
1994 MR2 JDM turbo - The Mista2
2013 Holden Calais wagon - to carry stuff and peeps
1977 Toyota Crown - work in progress.  S  l  o  w  l  y  !  !


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artymr2
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/15 16:23:04 (permalink)
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Yes, qutie confident in previous car (sw20 turbo with aftermarket lsd) 4 quarts was enough.  There is also a fill point you can use on the top of the gearbox which is easy to get to if you dont have the factory air box, using a funnel and hose.
 
Will see what the local shops have in stock of GL4 and get that.
 
Cheers

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Adrian
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 00:26:36 (permalink)
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MR2QIK- Thanks for the reply mate but I've already put the 80w90 in the gearbox. Works ok, not hard to shift when it's cold. If I shift too quickly when the fluid is cold it'll grind going into third. This happened with the royal purple I had before but it's definitely better now. I think that royal purple may have done some permanent damage to the synchros. Gears shifted perfectly before I ran that oil. Wish I left it alone. No idea what oil was in there before. All I know is that it was red and worked perfectly.
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Tree
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 00:57:33 (permalink)
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Hmm I tried Redline MT90 from all the good reviews and it seemed fine. Felt good after change but might be placebo. Maybe I'm not experienced enough to tell the difference. Then again it was changed back in Jan/Feb and I haven't really driven the car since April. 
MR2QIK - it was unfortunate your box got stuffed from MT90. There seems to be very few bad reviews but mostly good which is why I went for it. Maybe it's not so good or maybe something else was at work?
One googling seems there was a bad review from Royal Purple too but a thumbs up for Redline. Because of this discrepancy, perhaps there are too many variables to have a definitive answer, me thinks. Time for me to shut up and go to sleep lol...

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purple5ive
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 08:40:31 (permalink)
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Adrian
All I know is that it was red and worked perfectly.

Could have been Automatic transmission fluid.

quote:
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artymr2
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 10:22:01 (permalink)
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My friend had ATF in his turbo box for many years with no issues.
 
Cheers
 

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#40
Reddtarga
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 11:44:00 (permalink)
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From the '91 service manual:


1990 ADM NA
 
 
 
 
 
 
#41
MR2QIK
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 12:09:22 (permalink)
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I'm quite confident it was the MT90. I spoke with a few others around the globe that had the same issue (one in UK & US). It is not immediately apparent. For the first year or two, shifting felt fine. The synchros simply wore prematurely. It came to the point that I had to resort to ATF to prolong rebuilding the box for a year or two.
 
It may very well be something else at work, but given that fresh rebuilt transmission lived & died on MT90, I'm not down for another round or willing to recommend. If I were to buy another MR2 & it had MT90 in it, I'd change it immediately.

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#42
artymr2
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 14:19:09 (permalink)
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Only gl4 caltex oil at super cheap is vmx-m which is a 75w-85. No blurb on the back and overlaid sticker on front. Will check repco.

Cheers

Black SW20 GT Turbo T-top


#43
big_al_92t
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 16:15:06 (permalink)
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Agree, sometimes it's best to take what the American's on the MR2OC have to say with a pinch of salt.
By the way your build is absolutely amazing. That larger supercharger is going to be incredible. 
#44
artymr2
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Re:Best gearbox/LSD oil for Gen3 turbo SW20? 2012/08/16 16:21:38 (permalink)
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Went to Repco and Auto1, both only had the Castrol GL4 VMX-M 75W85, and 2 Penrite GL4 olis, 75W80 and a 80w85.
 
Caltex welshpool have the GL4 75w90 ($40.15 for 4litres) they said its unlikely any shops would stock it as its not a popular oil.
 
Cheers

Black SW20 GT Turbo T-top


#45
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