The 99.9 mpg thread

[dcoyne78]

Hi Toyota owners,

Is anyone nailing 99.9 mpg segments in their Prius, Highlander, or Camry? I am only familiar with the Prius and not so much the HiHy or CamHy. Today I pulled off my first longish (47.8 miles) segment over 90 mpg, at one point I had 5 of 6 bars at 99.9 mpg (I have never managed to peg the bars all the way across). I didn't have a camera with me to record any of this, hopefully I can pull this off in the future with my camera in the car. Note that this was a round trip segment so that there was no net change in elevation. I use the same method to calculate my segment that Wayne Gerdes used when he borrowed Carl's Prius las summer. I only like to reset my mpg when I refill my tank so to figure my mpg for a segment I do the following: suppose I have travelled 200 miles on my current tank and the average mpg reads 50 mpg, I have used 200/50=4 gallons of gas, I write this down and then drive 100 miles and lets say (this is my dream scenario) the avg mpg now reads 60 mpg, now I have used 300/60=5 gallons of gas. So I travelled 100 miles and used 1 gallon so thats 100 mpg. So to please the skeptics I would need a photo of the MFD before and after my segment, today I have no photos so you can discount this if you wish (and the superstars like Wayne, Dan, Steve, Lakedude, Carl, and others can yawn and say, "Is that the best you an do?"). Today I had 268.2 miles on the tank with an average mpg of 64.1 mpg ( 4.184 gal) at the beginning of my segment. At the end 316.0 miles, 67.3 mpg avg (4.695 gal). So I travelled 47.8 miles and used 0.511 gallons of gas which is 93.5 mpg, clearly this is only an approximation, but I am pretty happy. At some point it would be nice to get a scangauge to give me a little better feedback as I drive, anyone know if the scan gauge goes above 99.9 mpg, if not I could use miles/liter so that I can see what I am getting when the prius display is pegged.

Dennis