diff oil grade is it 80w90

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I was told to use that in my diffs and transfer box on my disco, I'd imagine it's the same for a RR, best get another opinion though ;)
 
Diffs EP 80/90. But definately NOT in transfer box. Automatic transmission fluid in that.

I ain't done it yet but was told to put it in me transfer box on me manual disco, and mtf 94 in manual gearbox, I'll have to look again what I need to put in there.
 
I ain't done it yet but was told to put it in me transfer box on me manual disco, and mtf 94 in manual gearbox, I'll have to look again what I need to put in there.

Your P38 is not a Disco. Discos also used automatic transmission fluid in the manual gearboxes at one time. Only when Honda became involved with Rover was the MTF94 used. It is a Honda spec oil.
 
They won't post to France:doh: Locally, I can only get 80W90, just a bit more drag but it won't do any harm.:)

On a vehicle with the aerodynamics profile of a block of flats i can't see 80/90 as opposed to 75/90 making a lot of difference. :)
 
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