problem with oil message in instrument cluster

[Cur]

I have a used 2008 Roadtrek Freightliner, diesel by Mercedes w/ 48,000 mi.

On the last several trips, before starting the motor, the dip stick level has registered midway between Min & Max. About 75 miles (+/-) into the trips, the message it the cluster tells me that the oil level was "HI". I though it had to do with the high outside temperature &/or because of coming across the Coastal mtn. range. However on our latest trip which was only 95 miles (+/-) one way and was perfectly flat in terms of changing altitude, the same message appeared in the instrument cluster.

Can anyone give me some insight?

[gaugeguy]

Have your mechanic clear the fault codes in the computer. If it happens again, most likely there is a glitch in the sensor.