It is true that 30 SAE motor oil was the original recommendation for use
in the Moss gearbox. I was told that using 90 EP would damage the needle
roller bearings in the box because they would not get adequate lubrication.
I can say absolutely, from many years of experience, that that is complete
"bunk". The 30 SAE motor oil doesn't protect the gears and syncros as well
as the 90 EP and contributes to the premature failure of the syncros.
Overhaul the gearbox, set up the syncros and shift hubs properly, and use
the best gear oil available. We have had good success with Chevron Delo 80
90, Kendall 80-90-140, GM limited slip gear oil, and lately Redline MTL.
Regards, Greg
Solow
----- Original Message -----
From: <DGreimel@aol.com>
To: <TrmpetDave@aol.com>; <morgans@autox.team.net>
Sent: Thursday, August 26, 1999 2:50 AM
Subject: Re: lubrication
> Perhaps my memory is failing but it sure seems to me that 30wt oil was the
> factory recommendation for the Moss box in the early 60`s. 90wt
definitely
> defeats the synchros which are, after all, little clutches and makes them
> hard to shift. Most british boxes used 30wt which at the time seemed odd
to
> me. I had serviced US cars prior to working on imports and only Chrysler
> used lighter oils, in some cases ATF.
> Don
>
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