I'm not sure which manual TeriAnne gets her specs, but my manual shows
either 80 or 90 wt depending upon temperature! Of course my manual is for
the TR250 TR6. She may be looking at the TR3. Well: We all learn from our
mistakes. Hopefully Stanpart learned from theirs.
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>Regarding TR4 O/D gearbox oil, TeriAnn wrote:
>
>>Use 30 wt motor oil. Do not use 90 wt. Do not put anything strange & slippery
>>into the transmission unless you want to rebuild the OD unit. Look at your
>>users manual for acceptable fluids. If you don't have a user's manual you
>>probably should pick one up.
>
>Thanks for the info, I'd seen the manuals: the Triumph workshop manual
>stated "Castrol GTX", the same as the motor oil. Haynes suggested a variety
>of brands all of which were EP gear oil, the same as for the diff., not a
>good idea!
>I was just wondering what other people use.
>
>Cox and Buckles in the UK recommend Castrol ST-90 for all TR gearboxes, I
>guess this is the same weight as EP-90 (used in the diff.) but without the
>EP additive. Apparently there was a lot of discussion on this subject in
>the TR Register magazine. Anyone remember the conclusions?
>
>Thanks for all the replies
>
>Phil Searle
>WWW: http://www-chem.ucdavis.edu/~searle
>
>
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