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- - R380 Gearbox Oil (https://landroverforums.com/forum/general-tech-help-8/r380-gearbox-oil-38056/)

Dambo416

Feb 6, 2011 02:25 PM

R380 Gearbox Oil

Can anyone please explain to me why all Land Rover workshop manuals recommend ATF Dextron II to be used in the R380 gearbox fitted to a Defender with 300 Tdi engine, yet for my Discovery II Td5 also with the R380 gearbox it is SMX-S manual transmission fluid which is a W75-85 viscosity ?????

It's the SAME gearbox, why can't i put SMX-S into my Defender 300 Tdi as well and maybe make the box a bit quieter ?????

Please explain?

Alex

antichrist

Feb 6, 2011 03:51 PM

Because that's what they first used. Then L/R issued a TSB saying to switch to MTF.

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