Thread: Viscous coupling...vicious price

Originally Posted by glenhendry

Sorry to bump an old thread, but RAVE says the TF box uses ATXIII fluid, and the catalague at Supercheap says that the TF box uses gear oil like that diffs. Now, normally I would belive the RAVE, except recently it gave me a bum steer wrt blend motors (see thread).

So, I am doing engine oil and diffs today, and the pump is full of gear oil, can I top up TF box, or is it definitely Trans fluid?

I have found the answer RR.net: Range Rover Transfer Case Oil Change

Looks like the old castrol catalogue at SuperCheap is wrong. Not too surprising...

Mmmm ... Do you have the "Owners Manual" that is supplied by LR amd usually located in the glovebox?

Originally Posted by mike 90 RR

Mmmm ... Do you have the "Owners Manual" that is supplied by LR amd usually located in the glovebox?

No.

And I lost some trust in the "owners handbook" on RAVE too, due to the errors I found in RAVE last week described below.

I use Mobil Agrifluid 424 in the T/F case. I switched to this after researching the RR.net having become aware of constant transmission whine from the T/F case. Over about 5,000km the whine reduced significantly to the point that one has to listen intently to detect it. It meets Dexron III specs.

Mobil stress it's for wet clutch tractors and t/f cases in 4WDs ...but NOT for auto transmissions!!! For the diffs I simply used the recommended Castrol product and added a sachet of Nulon Teflon magic whatever. That was 30,000 km ago... truck now has 135k km and there's no overrun whine from either diffs or the t/f case...

The Mobil 424 is not widely available...you may need to order it in or get it from a Mobil oil Depot. My son scouted some for me from a farm produce supplier in Towoomba. A 4L can is ample.

EDIT: PS to fill the T/F case I simply use one of those small circular pumps attached to a cordless drill. It does the job in about 30 seconds