according to top gear jeremy clarkson has managed to get a diesel audi from scotland to london on 1 tank by
1. keeping the car stereo off
2. windows closed
3. keeping to a speed of 55 mph alll the way
4. keeping the a/c and demisters off
i tried that on a short journey as i was low on fuel and had no money and the results were yes i saved a lot of fuel but
1. it was boring as hell
2. too damn sunny and i lost 2 stone in weight
3. trucks kept passing me honking and shaking their fists
4. couldnt see a bloody thing for the last 30 miles