No. It's not the tires. History shows that. Besides I was switching from my Winter tires to the stock Nexens which (if anything) would cause an increase rather than a decrease in range.. What I noticed was an near instantaneous drop from one day to the next.Tire Pressure? Or maybe new tires have a bit more friction until they are broken in?
I don't know if that happened. It's an interesting theory but I'm not sure that an hour of "on" time would figure so heavily in a GOM calculation. I'm trying an experiment tonight and charging to 100% to see if that kickstarts a recalculation. Before the glitch 80% was around 350 km and 100% was 400km. I'm curious to see what it is tomorrow.However, I got my tires swapped out last week and immediately I saw a distinct drop in projected range.
Could it be that during the time the tires were being swapped the car was "on" and some electricity was used (heater, lights maybe) but because no distance was covered, the GOM recalculated a lower efficiency, and so a shorter range?