I know what the difference is supposed to be on the after 1 January 2004 engines--and Robert Patton said early in the TDR that they would cost more to purchase, cost more to maintain, and cost more to run due less milage. Does anyone have any more technical information on what to expect? Timing isn't good on getting a 2003--looking for some property and Class V receiver not available yet. Will the early 2004's be the same engine as 2003--seems like they would be. Thanks.