Oman Report post Posted June 8, 2009 I have been carefully logging mileage information on my new FFH. I had been lurking on various Prius forums and my goal is not to have a I-GET-A-ZILLION-MPG contest, rather I think it is more valuable to Fusion owners to get a real idea of what the FFH will actually do in various conditions and driving styles. As far as I'm concerned the only information that matters is how many gallons of fuel go into the car and how far it travels. The computers in the car are just estimating the fuel usage by counting the time the injectors are open. Variable temperature, specific fuel pressure, etc. can lead to several percentage points of error. The format I have been keeping is as follows: Date / Act. Miles / Tank Distance / Gallons / Price/Gal / Calculated MPG / Notes (No A/C use, 50% 70MPH Hwy, Trunk loaded, single passenger, etc.) My Data so far (starting with 2nd tank since I did not have good data on the first): Traveled: 519 miles, Added 14.407 gallons, MPG 36.02 - No A/C needed, 50% 70Mph Hwy, SoloTraveled: 536.7 miles, Added 14.829 gallons, MPG 36.19 - No A/C needed, 30% 70Mph Hwy, 175 miles with 4 passengers and loaded trunk on 55Mph Hwy It is still very early but that is a 36.11 real MPG on a brand-new engine driven on quite a bit of high-speed highway. That is certainly as good as I was expecting. It will be interesting to see if it starts to improve at it breaks in and I get better at driving it. Does anyone else want to track and contribute their data? I'll keep a spreadsheet up to date and re-post here if anyone is interested. Jon Quote Share this post Link to post Share on other sites