Transmission Lube
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Cruising
Joined: Jun 2008
Posts: 14
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Transmission Lube
My '92 6-speed uses SAE 5W30 transmission lube. Royal Purple suggests using Royal Purple 5W30 motor oil. I know of people who use Pennzoil Synchromesh. Any suggestions on what would be the best to use for my application?
Safety Car
Joined: Feb 2000
Posts: 3,771
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From: MANDEVILLE, LA La
Recommended Castrol TWS 10W60 BMW M5 Oil.
see: www.zfdoc.com/techinfo.htm for Technical Info.
Amzoil makes one as well as Red Line MTL.. Supposed to be acceptable
alternatives.
see: www.zfdoc.com/techinfo.htm for Technical Info.
Amzoil makes one as well as Red Line MTL.. Supposed to be acceptable
alternatives.
Race Director
Joined: Oct 2005
Posts: 11,770
Likes: 175
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
Race Director
Joined: Oct 2005
Posts: 11,770
Likes: 175
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
Amsoil lists their Synchromesh as meeting the specs of the original GM part# 1052931
I've been using it in my '96 for close to 50k miles without any issues.
http://www.amsoil.com/storefront/mtf.aspx
I've been using it in my '96 for close to 50k miles without any issues.
http://www.amsoil.com/storefront/mtf.aspx
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
I'd use the above mentioned AMSOIL transmission fluid with much more confidencee than any automotive oil. FYI, the above link takes you straight to AMSOIL's corporate website. If you do try the AMSOIL, note the info in my sig to tag the sale to the forum. 
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C66 Racing #66 NASA ST2, SCCA T2
AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)
Melting Slicks
Joined: Jun 2004
Posts: 3,253
Likes: 2
From: Castro Valley CA
Amsoil lists their Synchromesh as meeting the specs of the original GM part# 1052931
I've been using it in my '96 for close to 50k miles without any issues.
http://www.amsoil.com/storefront/mtf.aspx
I've been using it in my '96 for close to 50k miles without any issues.
http://www.amsoil.com/storefront/mtf.aspx
I just put it in, runs fine. I take mine to the track as well and most of the shifts are at 5800 rpm and for extended 25 minute runs. I would absolutely recommend it.
