Hi, i had this engine swap on my truck because of the 6.2 went out, any way trips from here (long beach ca.) to mexico, about 1700 miles and back to cali. and about 3 or 4 times to converse tx, and one to las vegas on january for the convension, plus the one here now days about three wks ago ( note that the trips are from and back to mexico including las vegas) i've put about 30k on this engine and still running strong and i'm happy with it. I'm happy with my 6.5 td only thing it gets hot in cabin.