KX-R 4WD seven seater.... Just back from 3,500km trip from Sydney, Cobar, Broken Hill (about 250km of fast dirt along the Darling River), Mildura, Ballarat, Gundegai, across to the coast (another 125km of rougher, slower fire-trail), and home to Sydney. Overall average AS INDICATED on the computer was 10.2l/100km. For some of the slower legs, say, 90 to 100kph, the indicated economy improved to an indicated 8.6l/110km. The car's only done 6,000 now, and I will calibrate the accuracy of the trip computer over the NEXT few tanks and let you know. Air was ON all the way, and outside temperatures were from 35 to 42 during the day. All this was running on BP98 (half a tank of 95 in there somewhere). Tyre pressures were 40psi on tarmac, 30psi on dirt.