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This is a continuation of an earlier thread. Piper 1, we have verified the oil dip stick IS the OEM for this engine. The oil has been changed and filled exactly to the full line on the dipstick (in a TA shop). Driving to the nearest truck stop, the oil pressure was constant...Now we wait...

I am troubleshooting my 2004 MBE 900 (460K miles). I have noticed that when climbing hills the oil pressure DROPS. Is this normal? Seems to me the engine would be working harder and the pressure would spike...? Oil consumption is about a gallon over 12,000 miles. The engine protect system...

I am new to diesel trucks. I just purchased a 2004 M2 straight truck with an MBE 900 280 hp diesel wth361K miles. On the trip home, the check engine and the engine protect light blinked on a couple of times. I called the seller who wants me to drive the truck back to check it out (a 6 hour...