It monitors your usage and the timer reflects that. It doesn't just add up the miles. It doesn't know whether the oil is new or old if it hasn't been reset when the oil was changed, though.Dealer says they probably forgot to reset it (I didn't personally).
No track use but spirited driving on the street.
I'm curious if it is on a mileage timer of some sort or if it is intelligent enough to monitor oil life and tell me regardless of reset or not that the oil does indeed need to be changed.