How can I get alot better mileage on this 6.4 than I am getting now? I get about 10 MPG's at the stock mode. When I had a 1999 7.3 I got about 13.5 MPG's. Now with a smaller engine the MPG's are worse. I am retired with a very small pension and I would like to figure out a better way to spend my money.

 

DPF delete, intake, spartan tuner and you'll be seeing a lot better fuel economy