Went to start the cammo truck today after it sat for maybe a week. Really rough idle and threw P0306 code (cylinder 6 misfire). Overflow is a bit low, but I'm just running water right now so not sure if I need to be concerned or not. Turned it off, restarted a min later and all is good, cleared the code and it did not return. Temps all good durning 40 mins loop out to town and back, never got over 193* with the AC running and no shroud on fan. Hoping I don't have a gremlin or the head gasket is starting to leak on #6.