How do you track your MPG?

[dafut]

How do you track your MPG in your on-screen computer display?

I reset all of my counters back to zero @ 5,000 miles. Now, with over 10,700 miles total, I'm averaging 46.8mpg over that 5,700 miles.

I'm interested in how other Prius or Hybrid drivers track their MPG stats.

Thanks.

[Godiva]

I reset both trip A and B with each refill. Sometimes I'll reset B if I have a trip of some time on a tank t ohelp with Mapquest.

The consumption resets on the 2005 automatically, but I hit it anyway.

[barbaram]

I don't reset. did afew times when I first got the car but do not any more.

keep track on a spreadsheet of miles, gal & MPG each fillup and averages for month and total.

[Jeannie]

I reset with every tank, and like barbaram, I keep track of my mileage on a spreadsheet:
by tank,
by 2, 3, 4, and 5 tanks,
cumulative tanks
MPG vs MFD
cumulative tank mpg vs cumulative MFD mpg

And I was bored on Friday, so I added a column to track days between fillups and average days between fillups, cumulative miles per day and a projection of miles per year.

9 fillups so far, a little over 4000 miles.

[Skwyre7]

I reset mine with every tank. I put my tank/mileage info on GreenHybrid.com (see my signature). I didn't start using GreenHybrid.com until a few months ago. Before that I kept all my tank info in a little notebook I kept in the car.

Edit: I also reset both Odo A & B. I use these as my actual miles traveled. I also just like pushing buttons.

[TonyPSchaefer]

I reset at every refill.

Then I reset my ODOA. I use the ODOA as back-up in case I or someone accidently hits the [RESET] button on the MFD.

I enter it all into my spreadsheet which accumulates my lifetime-average; link in my signature.

[Ichabod]

I based my spreadsheet on another PriusChatter's with some changes, and some extra automation of calculations. I reset the MFD every fillup, and I like Tony's use of one of the trip ODO's as a backup, so I'm gonna start doing that, and telling everyone that it was my idea!

[Frank Hudon]

for the first 29,000 km's I didn't reset the fuel consumption readout and it was reading 5.1 Liter per hundred Km's lifetime 46.1 MPG US and the actual from the spread sheet was 5.4 Liter per hundred (43.5 US) this was over a period of 2 1/4 years. Since the reset for the last 6 tanks I've averaged 5.1 Liter per hundred Kms (46.1 US). The lifetime for the first year was 5.6 and the second year 5.4 calculated off the spread sheet. The fact that it's been summer for the last 8 tanks has brought the lifetime down to 5.4 I reset every fill up now but if I hadn't accidentally reset it I would still be doing a cummulative on the MFD. Doing a spread sheet is the only way to track your mileage I always include the indicated and the calculated mpg and the temp and the cost and the station EG.

Aug.7 2k6 32832 665 33.635 4.8 5.05 $37.30 Van +25 (Esso)

[tomdeimos]

I reset the mfd for each trip or portion of a trip I want to measure. I track my per tank mpg via the green hybrid site, and also have a spreadsheet where I can compare mfd vs the tank averages.
For this latter I have to keep mfd going for full tanks and I measure over at least 8 tanks.
Now I trust the mfd readout and just skip the calibration measurements so I can use the mfd for trips only.

[dafut]

Wow, this is pretty cool! Almost as many different tracking methods as there are answers...who'd a thunk it!

Thanks all...I'm looking forward to see who else chimes in.