HV Miles estimate after Full tank of gas

I normally don't watch DTE in my non-PlugIn except when the tank is getting low, so don't have any full tank estimates to list.

On a day hike outing, crossing Stevens Pass (4000 feet) both ways while testing the 2012 down to the flashing pip for the first time, DTE started out with barely more miles than the expected round trip. An after-hike side trip into Leavenworth for ice cream pushed the total trip distance about fifteen miles over the original DTE.

I monitored the sum of DTE and TripA. If DTE was perfect, this metric would have remained constant. Overall it shrank a bit, no surprise due to the lower FE of the mountain driving (significant B-mode braking loss on descents) compared to previous flatter miles.

During the fuel-guzzling climbs, this sum shrank considerably. After cresting the pass and starting the downhill coasts, it continued shrinking for a few miles until the car was confident the guzzling was done. Then the sum started climbing back up towards (but never reaching) the original sum. DTE itself never ever increased, but always decreased at least 1 mile for every 2 miles driven, even during gasless gliding. I'm expecting PlugIn drivers to see something different.

Had I been alone, or maybe if this wasn't the first low tank test on a new car, I'd have driven all the way home without refueling. The 2010 would have easily made it. But taking Jimbo's advice about minimum acceptable fuel level being a function of who the passengers are, a gallon was added on the way home. The flashing pip eventually went solid and the second pip even returned. But DTE (already close to 0) continued dropping 1 mile for every 2 miles driven, soon reaching 0 despite now having two bars of fuel.

 

i've never even looked at my dte. i'll try to remember on my next fillup.

 

I seem to remember 495, 500. But my last fill up was 930.5 miles and my tank still had 4.2 gallons left.

 

i had 410 this morning and 160 driven in hv so 570, but it's only a guess.