Fuel Economy - What do you get out of a tank? (3rd gens only)

[Ezz]

Ok, lately i've been driving my Ralliart like i normally drive - accelerate fast and corner hard, coast to stops.
Has been holding steady at 11.4L/100km, Mix of town/highway.

670L out of a tank according to the computer.

Ummm, gotta be something wrong with that. My Ralliart with the tune is more economical than what it was before it had the tune. Around town I average 10.9 - 11.2. on the highway its 7.2 lt per 100k. Your looking at around 640k's max for that so something not 100% right about the reading... i think DISCIPLE & TUFFY are correct in what they're saying. It needs to actually be tested with a full tank of fuel in normal driving conditions. Say, half town ks and half highway ks. That's what I've done. (BTW if your thrashing it and not driving without the foot planted... look at more realistic results like 13.4 onwards.)