Fuelly missing approximation of aveage speed?

[trollbait]

The city to highway mix is close to that info, but I don't think many track that.

[Jay2TheRescue]

My Daily Driver computes average speed, and users who have ScanGauges can list average speed. I think it is a useful metric, but would probably be misused. Many folks would enter "70" because they always drive around 70 on the highway, but your average almost never approaches your cruising speed.