Can someone enlighten me as to which version of Pentosin I should be using. Both my 1988 90Q and 1993 S4 call for G002000 mineral oil and I am not sure if this is 7.2 or 11S at my local Big Wheel Rossi store. 7.2 reg 16.99/litre now 14.99/litre 11S reg 20.99/litre now 18.99/litre Regards Thomas A. Robbs Milwaukee, WI 1988 90Q, 1993 S4