So I’m heading to an appointment this morning, on the freeway and the engine overheating message comes up. I get off the freeway and pull into a parking lot to pop the hood. Soon after I get the overheating message I get a message that says oil life is at zero percent, change it soon. It was at 80%. Under the hood there is coolant sprayed all over and what’s left in the reservoir is bubbling and steaming out. The return line has snapped where the hose connects. I get a replacement part and do the repair in the parking lot and resume on my way. Question is, why is the oil life at zero? Does the system assume that when the engine overheats to a certain temp, the oil is now burnt and has to be replaced. I had an overheat condition before when my water pump went out, but did not get an oil change message then.