Quote Originally Posted by Creampuff View Post
I just did a 2500km trip, mainly 110 (117 cruise) , and 106 in 100 zones, plus roadworks, Aircon on, 2 Adults, boot and back seat full of suitcases. average was 8.5 for me.
Your figures appear very similar you our Tig on highway stuff to Sydney and back to Canberra.
Our Tig is a 155 R Line with APR Stage 1 so no great expectations when coming to consumption.
Eats fuel around town in the order of 10-11 l/100km but is very spritely - one outcome is the cost of the other.
It is basically a van with windows and not that aerodynamic.
If you are sufficiently calm and patient maybe try cruising for an hour on the highway not exceeding 100kph then a similar period at 110-115kph and see the difference in consumption.

Dingah