There is a VW tech bull. no. 90-01 that came out 8/31/90 regarding
lubricant capacities. Among other capacities it gives:  3.2qt. for
air-cooled 4spd., 2.8qt. for water-cooled 4spd., and 3.8qt. for 5spd..
No mention whether this is a dry-fill but maybe not since it later
mentions that the 6.3qt. fill for all automatics is a dry-fill and that
refill is 3.2qt for automatics and the auto. diff. gets 1.3qt 90W.  The
weights, specs., and types I have left out, but they are here in the
bulletin.

No explanation given why the amount of fluid in the water-cooled 4spd.
is lowered.  I put in 3qt. of MT-90 and I'll likely add a bit more as my
natural paranoia takes over.  I wonder if there has been another bull.
to superceed this one?

-Dana-

Michael David Korsak wrote:
>
> Hey Everybody,
> I'm about to embark on my first real maintenance journey.  I've been
> having shifting difficulty with the advance of cold weather here in PA,
> so I'm changing the transmission oil (putting in the highly recommended
> Redline MT-90).  She is a four-speed, manual transmission.
>
> I crawled underneath today, to look around for a moment, familiarize
> myself with the workings.  I have the Haynes manual (didn't splurge on
> the Bentley yet), which is of no real help in changing the gearbox oil,
> only in checking the level of fluid.  Anyway, I'm wondering where the
> drain plug is to drain out the old oil?  Upon my brief inspection today,
> I saw a rather large hex nut (looked like an oversize set-screw, maybe
> 1" diameter),  which would require an allen wrench to remove.  It was
> located in the middle of the transmission, closer to the motor.  Is this
> the drain plug?  If so, where do I get the large allen wrench, or is
> there some other tool?
>
> After I do drain the oil, I'm unsure of the level to which I refill the
> transmission with fresh oil.  I read in the Haynes that the four-speed
> requires the fluid to come up to the level of the refill plug.  But in
> an inquiry I made a few weeks ago about gear oil, some listees informed
> me to only fill to a level 9/16" below the refill plug.  Which is
> correct?  Thanks to anyone and everyone who can help me out.
>
> Mike Korsak