My truck has started burning a lot of oil and I have enough blow-by out of the blow-down tube that the underside of the truck is showing oil residue about 1/2 way back.I have parked the truck because I fear the worst that I may have a crack ring or something.BTW, the oil consuption went way up, like a gallon every 1,500 - 2,000 miles.I don't abuse the truck but did have a programmer on it that I have since removed.Also this is my 3rd Cummins Ram and the only one that has ever had an engine problem (130,000 miles). Anyone seen or heard of this before?Thanks!