I picked up a 2006 f250 with the 6.0 powerstroke and was just looking for some recomendations on motor oil. The truck has 240,000mile and I am currently running Mobil 1 Turbo Diesel Truck with Archoil 9100 and a Motorcraft filter (plan on 5k OCI). Turuck is my wife's daily driver and will see occoasional weekend towing during the summer months (20ft enclosed trailer with dirt bikes and gear). Just want to make sure this is a good combination for this engine, on other forms people seem to be having sucess with Mobil 1 TDT in the 6.0 but I know this fourm tends to bring out more information on lubrication than any other.