Last night I was offroading on some pretty steep up and down hill terrain for about 10 minutes in 4Lo creeping gear. When I leveled out I noticed the Oil Light was on. I stopped on level ground, cut the engine, opened the hood and checked the oil. Dipstick said full. Started the engine and the light was off. Has anyone seen this happen? Did the steep hills cause the oil to flow to one end of engine triggering the low oil light? Does the light, once triggered, stay on until the engine is shut down and restarted?