So I'm a little puzzled by a recent spike in Wh/mile in my 85D. I took delivery in Oct 2015 and have maintained a pretty consistent Wh/mi over the past 5,000 miles, usually hovering in the 300 range. My lifetime is 345 wh/mi and most of my driving is around the city with not a ton of freeway driving. On road trips I've had no issue keeping it at or below 300. However, in the past 30 or so days, my 30-mile trailing Wh/mi has been floating around the mid/upper-400 range which I have never seen before. In fact, previously I had to try HARD (with a TON of spirited driving) to even get my Wh/mi to hit 400 and now I'm there every single day, and I even saw 500 for the first time ever this week.
I have been making a concerted effort to drive very conservatively just to see how low I can get my efficiency, but I can't get it below 400. Previously this exercise would have me in the high 200's no problem. And I'm starting to get concerned because everything I know about efficiency and Wh/mile is that it should be decreasing as the weather warms up, not increasing significantly.
Two things have changed that are worth noting:
-I moved offices so have a slightly different commute route.
-Weather temps have increased into 80's/90's.
-Due to the above, running AC a little harder, usually around 68 degrees full Auto then up to 70 once cooled off. I have been pre-conditioning my car more frequently than before. I do notice an annoying vibration/buzzing that I can feel (slightly) in the floor/steering wheel from the AC when the fan runs up and the temp is low. This is on my list for the next service, but aside from that it seems to work great.
I checked EVTripplanner for my current commute, and with the above conditions even with a speed multiplier of say 1.1 it says I should be in the high 200 range. Like I said, even with a feather foot I can't out of the 400's right now. Am I missing something here, or do I have cause for concern such that I should be reaching out to Tesla service? All systems seem to be just fine in the car. I'm on 19" cyclones and tire pressure is around 45psi as of last night (same as it's been since I took delivery).
Any thoughts or suggestions would be very much appreciated!
Thanks
I have been making a concerted effort to drive very conservatively just to see how low I can get my efficiency, but I can't get it below 400. Previously this exercise would have me in the high 200's no problem. And I'm starting to get concerned because everything I know about efficiency and Wh/mile is that it should be decreasing as the weather warms up, not increasing significantly.
Two things have changed that are worth noting:
-I moved offices so have a slightly different commute route.
-Weather temps have increased into 80's/90's.
-Due to the above, running AC a little harder, usually around 68 degrees full Auto then up to 70 once cooled off. I have been pre-conditioning my car more frequently than before. I do notice an annoying vibration/buzzing that I can feel (slightly) in the floor/steering wheel from the AC when the fan runs up and the temp is low. This is on my list for the next service, but aside from that it seems to work great.
I checked EVTripplanner for my current commute, and with the above conditions even with a speed multiplier of say 1.1 it says I should be in the high 200 range. Like I said, even with a feather foot I can't out of the 400's right now. Am I missing something here, or do I have cause for concern such that I should be reaching out to Tesla service? All systems seem to be just fine in the car. I'm on 19" cyclones and tire pressure is around 45psi as of last night (same as it's been since I took delivery).
Any thoughts or suggestions would be very much appreciated!
Thanks