This is going to be a little long.
So, a strange happened on my last roundtrip drive from home to work. Driving to work the other evening, I was naturally, running very late. I’d charged up to pretty close to full at 97% before setting off. During my drive, with OATs in the low 60s, I kept my speed as high as prudently possible, between 80 mph to 85 mph. So it was no surprise that I chewed through my battery like a manic PACMAN icon (did I just date msyelf?), and ended my drive 139 miles later with 55% battery remaining, and the efficiency dropping from 3.3 to 3.0 miles per kWh. I used 42% of my battery charge, and did the trip in 1 hour and 52 minutes. I think that’s a personal record.
Last night, I drove home. It was a perhaps a little cooler, with OATs in the low 50s. At first I set the cruise control at 70 mph, having already decided that it would be better for me to take a little longer to get home than spend several minutes pulling off the freeway to re-charge. I was anticipating that my efficiency would start improving. About 30 miles into my 139 mile drive home, I checked my efficiency. It was still at 3.0 miles per kWh.
I dropped my speed down to 65 mph and moved over to one of the right lanes. I kept driving. About 80 miles later, I checked my efficiency again. 3.0 miles per kWh. It hadn’t budged!
Now good and mad, and irritated with myself for having plodded along for so long, I dialed my cruise control back up to 80 mph, and kept it there for the remaining drive home, about 29 miles.
I checked my efficiency one last time. 3.0 miles per kWh. It had never moved. I arrived back home in 2 hours and 17 minutes, taking waaay too long for having driven so late at night, and with 11% battery charge remaining. Total roundtrip of 278 miles, using up 86% of my battery.
So after all that, my question is this. Do the displays get “stuck”? Does whatever it is that does the calculating fall asleep on the job, and not bother updating efficiency? Does it take the software a long time to update, so as to display real time efficiency? Is there a reason why my displayed efficiency never changed no matter what speed I drove?
Air GT with 19 inch rims. Tyre pressures were 48/49 PSI, warm.