Did some research on Ant's suggestion when I had thoughts of adding a turbo to my 77 Porsche 924. The problem was the lack of room and where to install the rad to get the best effect. So I started looking into NOS as an alternative but that's as far as I ever got, then bought the z3 and the 924 is sitting in my kids yard beside my shop. JIM
, anyway yes this oil has made a big difference to the gear box
, I would recommend people to change the gear box oil even thou it's supposed to be life long?