Do you have the Petrol or Twin Turbo Diesel. I now have 22000km on the odo. I use a program called 'CARTRAK' you log all expences for the car. (its leased and the program ensure the lease company cant rip you off). It also calculates fuel usage and economy. Around town, I average about 11.5 litres per hundred. On the freeway (Canberra to Sydney), at a constant 120kph I have got as low as 9.5 litres per hundred. (with myself, wife and 3 kids). The most I got out of a tank was 1231KM. This was from Canberra to Brisbane (Capalabar) , up the Pacific Highway. I filled up at Capalabar (light was on) and put in 124 litres. The fuel economy was worked out at 10.04 litres per hundred kilometres. I have to say that I was impressed for such a big car. I always have the climate control on as well. With the 6th gear issue, mine slips into 6th gear (after the 10000km service) without an issue at anywhere from 95 kph onwards. I have to admit, I love the power, and because of this power, its made towing my boat (24foot fibregalss Freedom Elite) an absolute joy. I am more than happy with the LC 200.