Right, so sorry to ask this, but ive spent the last half hour searching and just got puzzled.
I was 98% sure the mt75 4x4 box ran 75w 90 synth gearbox oil, but then i found this and all got thrown out of the proverbial window

https://passionford.com/forum/techni...arbox-oil.html

So, in a simple answer, what box oil and how much do i need for a 4x4 saff?!