I can get 10.5L-11.5 \100 km from a 2.7 VVTi 2007 workmate. I know the diesel engined version D3 turbo can get arnd 9L\100km and that seems attractive. But you probably have to weigh up the other factors, of regular servicing and parts replacement. I think if you were doing a lot of long distance trips per year the diesel option would be better, I did a calculation when I bought the Hilux and I would have to do 200,000 km before the initial outlay for the diesel variant broke even on the cost of fuel burned. For some that may take 20 yrs before they can recoup the extra $ of the diesel vehicle purchase. For some, the smell of diesel is objectionable and it seems to get every where on you at the pump no matter how careful you are. As for the pump price, I know there was a period in this country when the price of diesel was greater than that of unleaded due to the boom in the mining industry and market forces of supply and demand. The 1990 circa hiluxes (non turbo) where real fuel sippers and could go a long way without stopping for a drink but they lacked power. I think If you rate fuel economy over power, an early hilux running on bio-diesel would make the fkn taxman weep. LPG is soon to loose its tax exemption and you will see a price increase in this arena, investers in LPG conversions are about to learn about social engineering orchestrated by Governments and lobbyists. Just wait till Gillard folds to the do-gooder Greens to keep her lily white butt outa the political wilderness, and slaps a Carbon tax on fuel burning. I guess what I am saying is welcome to the wonderful world of consumerism tempered with the political influences of what you drive . Cheers !