Diff Oil

[MarkG]

I've just bought some Castrol Transmax Limited Slip Z 85W-90 to go in mine (Jag Powerlok Rear)

[Mike Hamblin]

If your concerned about oil types for your diff, then speak to Ben at Simply performance.

I think this is one I used, as recommend by simply performance for my new black line power lock diff
Castrol axle Z or 75w140 Syntrax.  or this one which has an additive  Liqui Moly 4420 GL5 LS SAE 75 W-140 Hypoid Gear Oil Fully Synthetic

[Kev Davies UKCC Membership]

Hi John,
do you have a Jaguar powerlok diff is the first question?
If so then the standard LSD oil is fine in it.
If it's an open diff just standard diff oil will be fine.
I've run up to 500hp and 500lbft of torque through a Cobra with a powerlok for ages never had need of anything more special.

[John Barnes]

Hi All

I have a Dax Cobra running Chevy 350 engine and Jag rear end, the diff had been spraying out some oil so took it in yesterday to get it checked it turned out to be the backplate of the diff wasn't tightened up enough so has been bolts have been tightened up and the diff refilled however the diff oil used was one that is used on Jags with LSD but I feel that mine will need something a bit more high performance due to the power of the car etc, Is anyone on here running similar set up and if so what diff oil are you using ?