Yes, currently running it in my freshly rebuilt spi. Seems fine, nice and cheap and has the right stuff in it.
As has been mentioned I think regular changes with the correct zddp level oil are essential
Apologies for resurrecting a slightly old thread - I've just bought a spi (93) - going off the recommendations I've just ordered this oil and filter so I know what's in the block as there's very little history with the car.
I'm just wondering what you consider regular oil changes - is it age related (every 6 months) or mileage related (every 5K miles?) or something else?
Thanks
Adrian
Be prepared for many different answers, all claiming to be correct!
Personally, I change the oil twice a year, and never with an interval of more than 1500 miles. It only costs about £30 a pop, a hell of a lot less than a gearbox or engine rebuild!