Be/1. Box With Zf Diff - Which Oil ?

[jimmi 0 1 Cars]

Hi folks, I recently drained and replaced my 205's transmission oil with Millers CRX 75-90 Competition oil ( with nano technology ?). -my car has BE.1 box with ZF plate diff. - used for Hill climbs/ Sprints/ Stage-rallies.

Was looking through old forum posts on this site and came across a locked thread from 2008 - declaring that 205's use mineral gearbox/diff oil !!

Will the Millers oil I've put in box/diff cause me bother ??

[welshpug 1,656]

75w80, anythung else and the synchros dont like it.

[Chris H 10]

Yeah, as has been said 75w80 all day long. The total BV is what the works cars used with a ZF diff. In the past i've used millers 75w90 and it was a mistake so went back to 75w80