Hey Taffy,
Thanks for the reply! The US is in the process of changing the diesel formula, as well... I think it's the sulfur content you were thinking of. It's the prime suspect in the way of pollutants in diesel fuel. There's also a push to incorporate so-called "bio-diesel" (They refine it from used vegetable oil - mostly from fast-food restaurants). That's why I inquired about the VW diesels... they're being engineered to handle the lower sulfur content diesel fuel AND they're very efficient! Either way, I'm considerably far from the point of moving. I'm trying to get a feel for what I can expect, so I thank you, again, for your reply.
The Grinch
(I'm really not a Grinch, though! :D )