Hello. I have 2010 with 143000km. I just finished changing all of the fluids. It took me a week to get through that as well as some other maintenance (spark plugs, fuel pump). I was driving in between each of the maintenance windows. What I noticed was that the litres per 100km had increased a lot over the last 10000km. Each fluid change did have a positive effect but the economy was still bad. That is until I changed the PTU fluid (which was empty) and the RDU fluid. Like magic the fuel economy came right back to normal if not better than before. I used Royal Purple synthetic 75/140 and the machine is like new. CHECK THAT PTU FLUID!