Hi I have a 1975 series 2 and looks like ive got an LSD. Jack it up rotate one side forward and the other side goes forward as well. Can I ask what oil I should use in it? Like everything else on this new (to me) car Ill have to assume the previous owners have conducted some poor maintenance even if they have done well. Best to be on the safe side.

 

Would a Canadian XJ6 Sovereign have a LSD?

 

Nothing exotic required. I'm not sure what brands are available in your area.

I use any name brand 80/90 gear oil and add a limited-slip additive. Some gear oils are already limited-slip ready and say so on the label




Cheers
DD

 

Probably not. Very few six cylinder cars have it.

LSD was standard on V12 cars. As far as I know it was always optional equipment on sic cylinder cars

Cheers
DD

 

My 83 had it, but no telling if it was part of an option package or someone swapped it in!

 

[QUOTE=iramphal;2821667]Would a Canadian XJ6 Sovereign have a LSD?[/QUOTE


YES, it has the LSD.

 

Yes. The Sovereign had LSD, the XJ6 did not. All Canadian V12 cars had LSD.

To confirm, under one of the bolts that hold the rear cover on should be 2 tags. One for the gear ratio and the other will have PL for power Lock, i.e. limited slip.

 

Here we go : https://penriteoil.com.au/product-se...ecommendations

penrite diff oil 80w /90 G08090001 has a built in additive so suitable for LSD

Thanks for help everyone

 

Thanks to all who responded to my Sovereign LSD question. Sounds like I need to crawl under the car and check for those tags. Unfortunately it is +3 deg. C or 37.5deg. F in ny garage, so that check is now on hold for a bit.

As an aside, is it detrimental to use an LSD designed gear oil in a non-LSD unit?

 

Not at all, it will make no difference.