Oil Change Interval ?

[bnorth]

My daily has an oil life monitor in %. I always reset it to 50% at a change instead of 100% and change when it notifies me so I am changing oil roughly twice as often as spec. It's an Ecoboost so known to be sensitive to dirty oil and I don't mind having it changed more often for some piece of mind on longevity. For hobby vehicles that aren't driven often I usually just change once a year.