Best oil with a quaife ATB

[Richie-Van-GTi 71 2 Cars]

As title really, I have a xsara vts box with quaife ATB in a race car. Looking for oil recommendations please

[Tom Fenton 1,541]

The synchros in the box need 75/80 to work properly. I’ve always used the Total stuff. I don’t think the Quaife diff is too sensitive to oil.

[welshpug 1,656]

like Tom said, unless you have a plate diff stick to whatever suits the synchros, psa have moved to a straight 75w oil now which still works well, dont use anything with EP on the bottle, thats diff oils!