Re: [Amc-list] proper transmission lube, was Re: T-96 woes...

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: Tom Jennings <tomj@xxxxxxx>
" 
" Wrambler242@xxxxxxxxxxx wrote:
" > Follow the link.
" > 
" > http://www.jeepsunlimited.com/forums/showthread.php?p=8261620
" > 
" > Most of the reasoning is covered.
" 
" There's an excellent post in there (twmattox) (with those foolish things 
" I think called "facks") which reminds me of one of the critical deciding 
" factors in gear oil: is there brass/bronze in there, or not?
" 
" * Old transmissions (T-96...) with plain bearings and brass synchronizer 
" gears CANNOT use "extreme pressure" additives, eg. anything with sulphur 
" (sulphates, etc) as those EAT COPPER AND ZINC METAL (that's in 
" brass/bronze).
" 
" * That's a separate issue from the viscosity choice stuff that's partly 
" subjective and use-based.
" _______________________________________________

also true of some newer trannies.  i don't recall if it's the ax15 or
nv3550 or both, but jeep/chrysler expressly forbids use of gl5 gear
lube and specs gl4, for this reason.  gl5 will eat those synchros.

nb. brass is copper/zinc; bronze is copper/lead.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh@xxxxxxxxxxxxxxxxx                       and think what none thought
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