well i love my d40(auto) but towing a car trailer(2.6tn) you need a fuel tanker to go with it !! last 3 tanks where .... 510km for 148ltrs / 522km for 154ltrs / 547km for 158ltr ......she just clocked over 15,000km now my rpms are @2,900 to 3,000 @95/100 kph ....so my fuel usage per 100 would be...