Yes - that is my car, a good guess, where did you come across that photo?
The
oil I use is a Castrol fully
synthetic limited slip
oil called SAFEX (not sure of the spelling but sounded like that). That too is an incredibly smelly
oil, and costs more than liquid gold I think, but it seems to have done the job so far. I was advised to use this by a guy who used to help run the Tom Walkinshaw Race Car Jaguar XJS a few years ago, he reckoned that was the only stuff that let their diffs hold together too. The oil wasnt on the shelf, I had to order it from the Castrol head office to get it. By the way, if you are running a manual transmission Castrol also does a
synthetic oil as well (but the name escapes me at the moment).
I would guess that the torque produced by a supercharged big block might be more than my car, so maybe thats why I have got away with it? My car is a full race 454 Chev, and I guess the power curve is pushed a bit higher in the rev range, and doesnt have the hairdryer pushing the air in.