In a message dated 96-03-31 11:48:02 EST, ui775@freenet.victoria.bc.ca
(Alistair Bell) writes:

>I do remember gear oil smelling of sulfur. But I'm still confused. If the 
>"GL" classification of 6 is better than 5 which is better than 4, where 
>does a GL-4 synthetic (ie Redline's MTL GL-4) fit in?
>
>

Again, this has to do with the friction characteristics being ideal for the
VW synchros to work properly.  Kendall and some other manufacturers still
market the GL-4 oil for VWs.