Disco 1 DISCO 300TDI MANUAL AXLE AND TRANSFER BOX OIL?

Morning
I have been looking at replacing the oil in my axles and transfer box. Im aware that I should use 80w90 but I was getting confused to whether it was I should be using GL-5 or GL-4 ?
can anybody advise on which to use?

if GL-5 would this stuff be advised? its a good price
https://www.ebay.co.uk/itm/Castrol-...541219&hash=item41d4c8d04b:g:nfsAAOSwxYxUwQBr
Thanks

GL4 90 is what’s stated in your owners hand book. If u wish to use a multi-grade oil then either 75w90 or 80w90 will do.

DiscoLyle said:

Morning
I have been looking at replacing the oil in my axles and transfer box. Im aware that I should use 80w90 but I was getting confused to whether it was I should be using GL-5 or GL-4 ?
can anybody advise on which to use?


Thanks

Click to expand...

GL4 90 is what’s stated in your owners hand book. If u wish to use a multi-grade oil then either 75w90 or 80w90 will do.

It seesm that what's in the owner's handbook is different than what's in the WSM then

Tanks for the reply
is it safe to say 80w90 GL4 will do then ?
https://www.ebay.co.uk/itm/Comma-EP...7757?hash=item2f0fec4e8d:g:z6oAAOSwCmZZUPTN??

discool said:

GL4 90 is what’s stated in your owners hand book. If u wish to use a multi-grade oil then either 75w90 or 80w90 will do.

Click to expand...

I used Millers Nanodrive GL5 75w90 in my LT230..

Happy as larry it is

DiscoLyle said:

Tanks for the reply
is it safe to say 80w90 GL4 will do then ?
https://www.ebay.co.uk/itm/Comma-EP...7757?hash=item2f0fec4e8d:g:z6oAAOSwCmZZUPTN??

Click to expand...

GL-4 SAE90 is what my RR left the factory with, and was still used for the 11 years I had it and serviced by the dealer, the same for the disco for the first five years of dealer servicing, then came my DIY servicing, and using multi grade so GL-4 75w90 or 80w90 various brands of course Comma being one. No issues with both vehicles in the 32 years of ownership

Just to add you may need a bit more than 5 litres if you doing both diffs and the T box, my diffs we’re taking a bit more that the 1.7 litre as stated in my handbook possibly near 2 litres to overflow the filling hole.

Thanks the plan was to buy 7litres

Thanks the plan was to buy 7litres