Optimum Fuel Consumption...what should I do to achieve it?

[niky]

The Vanette is a notorious gas guzzler, just ask any previous owner. I think we were only able to get between 4-6 km/l from ours in city traffic.

One major player in this drama would be your aircon. The Vanette's airconditioning is powerful, but the compressor places a heavy load on the engine. One counter to this is to darken your tints as far as possible without making it difficult to drive at night. Then buy window shades for your passenger cabin. I personally hate window shades, but you need to conserve fuel, right? Then find the optimum setting for your aircon, as low as possible while still being comfortable.

Clean your carb, it makes a huge difference. Also, as regards to driving technique, AFAIK, it's different for carburated vehicles, you don't necessarily engine brake while coasting, as carb vehicles use fuel when you do this (as opposed to EFI, which don't).

EDIT: the consumption is heavily dependent on your route and traffic. As the Vanette will guzzle while standing still (thanks to the AC), then driving a different route or at a different time might save you a lot.

Also, what year of Vanette is it? If it's the earlier one, then you can also install an auxilliary fan (the last edition, the Grand Saloon, had this already). It won't save gas, but it'll protect your engine from overheating. Mild overheating in traffic can also make your engine less efficient.