Hey, Jeff… Hope you had a great summer! Hard to be too precise, but over winter and early spring last year, my LTD wh/mi peaked at ~400. I had plenty of days over 400, mainly because I tend to drive short distances in the city. Then over the summer, I got down to 325 LTD, which means I was below 300 much of the summer.
Even if I do a 90 mile cold weather drive (to lake geneva frequently), I don't start to see good numbers until about 45 miles into trip. I guess it takes that long to get battery sufficiently warmed up.
Like you (and probably everyone else on this forum), I'm very tuned in to what seems to affect it. Here's a weird one. After I drive around for, say 15 minutes, and stop for an errand, I'll see that I used average 450+. After the car has sit for about 30 minutes and I drive the same route back, I might get 330 during return trip. However if I just drove there and back without the 30 minute pause, it would be over 400 for sure. Battery seems to like a little rest after a cold start.
Having said all that, it sure does seem as if usage is very high right now… higher than I remember, but that could be because I've been living around 300 wh/mi or less all summer and had forgotten the cold factor. BTW I'm on 5.6… will watch carefully as weather cools and report back if I feel way off last year's performance.
