just about to change transmission and diff oil on a STi 5 which I believe has LSD front and back. I was going to use Millers CRX LS Synth 75w90.

Does anyone have any better suggests/comments

Cheers

Za

 

Recommend Castrol Syntrax,75W/90 part synthetic for both the front gear box/diff and the rear diff. Makes a big differance to the gear box/change. About £9.50-9.95 a litre, and you need 4 litres for the front and just under a litre for the rear diff.