[Jack Shaft]

Of the four articles melling has it right in my opinion,the use of diesel grade engine oils is spot on..Mahle, makes superior engine parts has the fire up and rev up to hold at 1500 rpm advice..Ive spent the last forty years working in,and running mechanic shops..ive never seen a mechanic do that proceedure..we ran it warm,checked for leaks,test drove tuned changed the oil and shipped it was the routine in the gas powered fleets I've been around.