I have found more than one oil from Castrol and i am trying to decide which one to get.
Sytrans B 75W cst@40/100 : 36,8/7,29 .This is specific for BMW gearboxes including SMG.
Syntrans V FE 75W-80 cst@40/100 : 40/8 .This is specific for VAG, incl. some DGS boxes
Syntrans FE 75W cst@40/100 ...