Thread: Oil for tc and gearbox ?

Hmmmm According to the Nulon website, they are both the same:

Nulon Products Australia - NetLube


However, according to the Castrol website, they use 2 different oils:

Castrol Australia - NetLube


So, we can deduce from this that if you use Castrol, you buy 2 different oils, if you buy Nulon, you can use the same one.

It is SynTrans in the manual transmission and whatever suitable gear oil in the transfer case.

Garry

Manual or Auto ?

80w90 mineral will do in the transfer case, book says 75w90, but we live in OZ.
Auto trans fluid if auto mineral oil again.

I've thought about synthetic, but when it comes to buying it, I never have enough in my wallet.

BIG O
03 D2 TD5 AUTO
99 D2 TD5 AUTO ACE
94 D1 TDI 3 DOOR (GONE)

Originally Posted by Basil135

Hmmmm According to the Nulon website, they are both the same:

Nulon Products Australia - NetLube


[snip]

Have another look

D2 manual gearbox we use 75W85 Valvoline Duragear, and 75w90 or 80w90 gear oil in the transfer. You can just use an 80w90 in warmer climates in the transfer case.

JC

Hi freedriver,

The main R380 manual gearbox is meant to have MTF 94 fluid. In Australia, Castrol make an equivalent manual transmission fluid called Syntrans 75W-85. The transfer gearbox is meant to have an 75W/90 differential oil, which is also the same oil that is recommended for the axles. The Australian Castrol equivalent of the recommended transfer gearbox oil is Syntrax 75W-90. It is dyed red.

It is important to note that the names of these Castrol oils are similar. The product name of the transmission oil ends in "trans," whereas the diff/transfer box oil ends in "trax."

We found that changing over to the recommended oil made an enormous difference to the performance of our Discovery. See further the aulro post: Transfer Gearbox Clang in Discovery II 1999 Manual V8.

LRT

Thanks for all the replies guys. Yes it is a td5 manual. I was rushing to get the disco ready for a trip up the coast and has already bought the syntrax so that is what I used on the gearbox .
I just got home from a failed trip after driving 3000ks and towing a broken down rodeo for about 200 of that no worries with the gearbox. All running smooth.
. Is the syntrax not just abetter grade of oil than the syntrans or should I be changing to the syntrans ? The latter is much cheaper .