Well, I decided to take it easy for a tank, just to see how far I can stretch a tank of Diesel... Boy, was I surprised! I usually get around 900km on a full tank of Diesel in my 1994 Jetta TD. This time, I slowed down while driving and took it easy while accellerating. I got 1,150km from a full tank. Crazy! Anyone else ever seen a TD (not a TDI) do this?
This time I used regular Diesel, had my winter tires on (~32psi) and had a bunch of stuff in the trunk. Sometime soon I'm going to try with my summer tires at Max psi, Sunoco Gold Diesel (usually seems to last a little longer than regulare diesel) and nothing in the car... Maybe I can add another 100km... Who knows, even 1,150km is better than the 650km I got on my first tank with this car!
Cheers all!