This Diesel engine has been rebuilt and it didn't use any oil till the HPOP went out. I replaced the oil pump and then I noticed my turbo when going up a hill and the Turbo would sound like a sneeze or Cha-Choo sound and when you got to the top of the hill it would make the new strange noise. Then later I was driving the truck and the engine just shut down. I pulled over and checked the oil and it used 1 and 1/2 gallons of oil. I had oil with me and filled it back to the full mark and filled the resvoir up on the HPOP and it started back up. The engine runs great. There is no smoke and no oil in the coolant. The Turbo has 279,000 miles on it.
Could the seals on the Turbo be leaking oil and then burning it in my engine? The compression is great and this is the only item that hasn't been replaced on the truck.