[AT] transmission oil/fluids

[Mike Sloane]

I am with Ralph on this - I use the NAPA generic tractor hydraulic fluid 
that is marked as being "equivalent" to Case Hy-Tran and the JD, Case, 
Ford hydraulic fluids. The only place I don't use it is in the Ford 2N, 
which is supposed to use transmission fluid. I have never had any 
problems with hydraulic system using that fluid (that weren't there 
before). Petroleum technology has gone so far beyond what was even 
contemplated in the early and middle parts of the 20th century, that I 
cannot conceive of modern hydraulic fluid damaging older seals. That 
being said, if the old seals were hardened and loaded up with oil 
residue, it is possible that new clean hydraulic fluid might carry some 
of that crud away and open up some leaks. But I doubt it.

I recall old time car mechanics saying that using glycol antifreeze in 
an old car would cause the cooling system to leak. But the reality was 
that the leaks were already there, and the color of the antifreeze would 
show them up. I have a feeling that might be similar to the use of 
modern hydraulic fluid in an old system.

Mike

Ralph Goff wrote:
> I'm using Case-IH Hytran plus in all my tractors , both old and new. I 
> have no worries about it's compatibility with older machinery.
> Ralph in Sask.
> http://lgoff.sasktelwebsite.net/

>> To those of you that understand oils and lubricants:  Is the modern 
>> transmission/hydraulic fluid (eg. Hy-Trans and similar products) 
>> suitable for use in the older transmissions.  I'm thinking of the 
>> Farmalls, John Deeres etc form the 1930's and 40's.  How about the 
>> modern GL-5 transmission oils?  I've heard that additives in some of 
>> these are detrimental to some of the bushings and seals.  Any truth to 
>> that? Thanks for any feedback.  John
>> _______________________________________________

-- 
Mike Sloane
Allamuchy NJ
<mikesloane at verizon.net>
Website: <www.geocities.com/mikesloane>
Images: <www.fotki.com/mikesloane>

How dreadful knowledge of the truth can be when there's
no help in the truth. -Sophocles, (495-405 BCE)


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