[AT] Transmission/Differential Fluid

bwhdon acton at onramp.bz
Thu Apr 15 19:45:16 PDT 2004


If its straight hydrolic oil it will foam in the trans, rearends etc. so
make sure its for trans and hydrolic systems . Car Quest sells a mulity
manufacture fluid ,  has worked for me for many years, as does the walmart
brand.

Don


----- Original Message -----
From: "Jim and Lyn Evans" <jevans at evanstoys.com>
To: "'Antique tractor email discussion group'"
<at at lists.antique-tractor.com>
Sent: Thursday, April 15, 2004 7:37 PM
Subject: RE: [AT] Transmission/Differential Fluid


> I use 80-90.  Walmart was closing out 5 gallon containers a few months
ago.
> $10 for 5 gallon of gear oil.  I bought it all. :)
> Too bad it was only 20 gallon total.
>
> If you want to use a lighter oil, use hydraulic fluid similar to a John
> Deere J20C spec.  It is hydraulic oil, but has additives to take the
> pressure of the gear meshes.  It is what all the tractors use now.   I
don't
> think automatic transmission fluid will have the extreme pressure
additives
> in it.
>
> Jim
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Dudley Rupert
> Sent: Thursday, April 15, 2004 7:19 PM
> To: Antique tractor email discussion group
> Subject: [AT] Transmission/Differential Fluid
>
> I seem to recall - it has probably been a couple of years ago now - a
thread
> on transmission fluid versus gear lube in the transmission/differential of
> older tractors.  While I know the manuals generally call for 80-90 wt gear
> lube I seem to recall that some/several on the list indicated that they
were
> using automatic transmission fluid instead.  A couple of weeks ago I
drained
> the back end of a Farmall M - it definitely had thin, red looking fluid in
> it.  I am now ready to refill and am thinking of using transmission fluid
> instead of gear lube.  While I have drained six or seven tractors before I
> have never yet refilled with transmission fluid.  So, I am curious - the
> last time any of you refilled the back end of an old tractor (I have a
T035
> so know Ferguson's need a special/unique oil), did you use transmission
> fluid (and if so what kind) or did you use gear lube?  I don't recall but
> does anyone remember any drawbacks being noted from using transmission
> fluid?
>
> Thanks -
> Dudley
> Snohomish, Washington
>
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