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Jettaboy
Joined: 14 Apr 2014
Posts: 10
Location: Australia
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 Posted: Sun Jun 29, 2014 6:22 pm Post subject: G31 Oil |
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Hi all.. just pulled the box on my 81 s2 931/924 turbo to do shift coupling!
What sort of gearbox oil recommendations can you give me... 90k miles on the clock...
Does anyone use or recommend additives,, Nulon/slick etc?
thanks
Ps... bought it with a sloppy shift so I hope the syncros are ok! |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Mon Jun 30, 2014 2:27 am Post subject: |
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Redline MT90
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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jazz guy
Joined: 26 Nov 2002
Posts: 434
Location: Colorado
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| Posted: Mon Jun 30, 2014 3:45 am Post subject: |
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| ^ Redline MT90 Noticible improvement. |
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Fasteddie313
Joined: 29 Sep 2013
Posts: 2595
Location: MI
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| Posted: Mon Jun 30, 2014 4:42 am Post subject: |
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Redline MT90 still good for a g31 with lsd?
do I need a lsd additive of any sort or special oil for it? or is that just nonsense?
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80 Turbo - Slightly Modified |
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jazz guy
Joined: 26 Nov 2002
Posts: 434
Location: Colorado
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| Posted: Mon Jun 30, 2014 6:37 am Post subject: |
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| Jettaboy wrote: | | just pulled the box on my 81 s2 931/924 turbo |
Given the OP's opening line, I think he should have the Audi box. I use MT90 in my '82 931.
I don't think MT90 works with limited slip but I don't remember for sure. You should sure check their website first.[/quote] |
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Jettaboy
Joined: 14 Apr 2014
Posts: 10
Location: Australia
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| Posted: Mon Jun 30, 2014 8:30 am Post subject: |
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Thanks peeps
Nope.. Definetly a G31 Snailshell
Euro model S2 which Most still had the porsche box |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Mon Jun 30, 2014 12:23 pm Post subject: |
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MT90 with a side of Redline friction modifier.
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Tue Jul 01, 2014 4:48 am Post subject: |
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Redline, Mobil-1, RoyalPurple. Must be GL4. Should be 75W90.
The OP has a ROW 931. All ROW 931 got the G31.
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erstwhile owner of just about every 924 variant ever made |
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jazz guy
Joined: 26 Nov 2002
Posts: 434
Location: Colorado
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| Posted: Tue Jul 01, 2014 5:19 am Post subject: |
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| Jettaboy wrote: | | Euro model S2 which Most still had the porsche box |
| ideola wrote: | | All ROW 931 got the G31. |
Pardon me, I'm just a silly American and did not realize that.
| ideola wrote: | | Must be GL4. Should be 75W90. |
MT-90 (75W90 GL-4 Gear Oil) should fit the bill then. Check the specs HERE. |
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Cedric
Joined: 27 Aug 2004
Posts: 2835
Location: Sweden
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Tue Jul 01, 2014 5:44 am Post subject: |
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| Cédric wrote: | | Hmm. Im pretty sure the G31 should have GL5? |
Nope. GL4.
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erstwhile owner of just about every 924 variant ever made |
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Cedric
Joined: 27 Aug 2004
Posts: 2835
Location: Sweden
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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Cedric
Joined: 27 Aug 2004
Posts: 2835
Location: Sweden
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Wed Jul 02, 2014 12:28 am Post subject: |
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don't forget ced's info is 35 years old. . .
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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