i looked down at my gauges yesterday while driving, oil pressure was at zero. as i was pulling over to shut her down, it jump back up to normal in an instant. so i kept driving, keeping close eye on the gauges. a couple mins later same thing again, down at zero, then jumped back up to normal. now im watching it almost closer than the road, on big bumps it would drop down, then come back up. seems like a bad connection somewhere. what you say? all sounds and seems normal while its happening. possibilties? gauge, connection, sending unit, is it possible for the pump to slip? let me know what you think, was planning to take it on the highway tommorow with my sled trailer, now im leary of doing that.