In a message dated 7/30/98 11:45:52 AM Eastern Daylight Time,
mstretch@SPRINTMAIL.COM writes:

<< Is 10W40 Castrol GTX turbo-proved or proof the same as 20W50 for the
Vanagon? Or should I just insist on 20W50? >>

If you want the straight scoop, ask Castrol. I'd be willing to bet they will
tell you the same thing that (most) everyone on the list will tell you:

1) Do what the owners manual says and steer clear of mechanics that tell you
they know more than the vehicle manufacturer.

2) (In my experience) 10w40 is too thin for summer use in a VW. Not only does
the manual say so, but the low pressure warning system is triggered by the
thin oil in warm temperatures. You've gotta use the 20w50 in the summer.

gmbulley
cary, nc