Great insight, thanks.Talking to Kevin on Bitog, who was on the Pentastar design team, it uses many data points. He said it is a very complex algorythm and you can trust it 100%. That said, with that complex algorythm and all, it lands about squarely on 7500 miles for me, give or take a couple of hundred. But my driving profile over the course of an oil change interval may be very consistent. I´ll go back and review my conversations with him and see what he said specifically. I remember hours, total engine revolutions, time, as in calendar, and start-up cycles were all part of it. But I think there was more than that. I´ll note that I rarely do short trips. My commute is 17 miles and 35 minutes, so the engine gets fully up to temp and burns off any moisture or fuel in the oil, every time. I´m sure a short trip profile where the engine rarely gets up to full temp would trigger a shorter run on the oil life monitor. A mostly highway profile would probably trigger a longer one.
I´d love to know who here has seen the most miles at or near zero percent on the OLM and who has the least. Anyone care to chime in? I might, in fact, make a thread just for that. Could be fun and interesting.