Thanks for the feedback eggwah. This forum is not very active and I know that this is a relatively old thread. But was glad that you recorded what happened here. My PriusV is not yet 3 weeks old and I recon the fuel gauge is behaving like my old VW (when old not new). The bars came down sloooowly for the first half of the scale (covering just under 400km), then it shoots down pretty quick after that despite the average mileage it indicates. I was getting around 8 then down to 6.7L/100km, and at the low end of the tank at 5.4L/100Km. What's going on?