Originally Posted By: DuckRyder
If your Mustang has a direct reading iOLM it’ll be the only one I’ve ever seen on a Ford. The one on my 3.7 appears to be nothing except a mileage counter. If it uses an algorithm it makes extremely small adjustments to the percentage.
The same with our 2017 2.3 EB Explorer. No matter the season, weather or driving conditions it tics off 10% of oil life per 1,000 miles driven without fail. For example since Dec 5th It's been driven 3,600 miles and idled with the remote start during a very cold period. Yet the iOLM says oil life is at 64%. I get the same iOLM reading in the summer doing all highway vacation driving. The iOLM appears to be just a 10,000 mile oil counter like the one in our 2005 Explorer which is a 5,000 mile oil counter.
Whimsey