Sudden increase in WH/km

[birdsquared]

In the past week, my usage has gone from around 170-180 WH/km to 230-240 WH/km - the outside temperature is about the same, and my usage is a bit less than usual, but not significantly. What, if anything, should I look at or try to do in order to address this? I will be double checking the tire pressures, though I don't think they've gone down.
Thanks!

 

[jjrandorin]

What, if anything, should I look at or try to do in order to address this?

Beside tire pressure? The normal "causes" for this, are weather, and road conditions. This goes up every winter, for everyone.

 

[birdsquared]

I know about the winter effect (I usually run around 150-160 in the warmer months), and the increase has not occurred with a cooling of the weather - it is the same if not a slight bit warmer than before the sudden increase in energy usage.

 

[GtiMart]

have you changed tires, maybe for winter? Rolling resistance is major. Has it been windy recently?

 

[KenC]

Precip on the ground can add 10%. Are you running the defogger with AC?

 

[jdcollins5]

Shorter trips?

 

[herbicider]

The temp may be the answer... my usage at 20F and 30F can vary by up to 20% for a 20miles commute... And yes, the shorter drive, the more obvious the change is

 

[birdsquared]

No change in tires or significant change in weather - BUT, a two finger salute (resetting the car) did solve whatever unknown issue there was. Trips back to the 170-180 KW/km range once again. Yay! This really is a computer on wheels - adding a reset to the the default problem solving algorithm.