i dont so much know about that. My 6.0 is a phucking animal. Sees non stop abuse and it weighs 18k! No issues yet. Could use a turbo cleaning maybe! Only problem was a catastrophic transmission failure at 1k miles. Had to chisel it off the block. But its got almost 80k on it now and no issues. Few sets a tires at 800 bucks for 2 of em!