Just one last question. In the manual it says to use 80/140 oil but they only one I can get is 75/140 , will this be ok to use?
Very little difference in viscosity but the IMPORTANT specs to check are GL5 and LS
This is pukka stuff (and eliminates the diff plate/cone chatter)
https://www.millersoils.co.uk/products/crx-ls-75w140-nt-2/