Answered? No.Has this ever been answered??
Discussed ad nauseum? Yes.
Here's what AHM has provided to dealership technicians via 'Service News':
The system shows engine oil life as a percentage,
which drops over time as the vehicle racks up
miles. It starts out at 100% with fresh engine oil,
and winds down to 0%, signaling the oil life is
over. The system counts down oil life based on
engine operating conditions (both normal and
severe). If the engine runs at higher temperatures
and rpm, or at low temperatures during short
trips, the oil life will deplete faster than an engine
running under more normal conditions.
Does this suffice?