new member here. I have a 2007 Ford F350, 6 liter diesel with 155,000 miles. Just purchased it last summer to haul a 28 foot 5th wheel. My wife and I took it on a 6,000 mile journey from MN to west coast and back in Feb. WE averaged 10 mpg. My big interest at this point is wonder what modifications can be done to improve fuel mileage. Right now the only non stock item installed is a K&N air intake. Look forward to joining in on discussions.
Sandman72