I have an 2006 Ford F150 5.4 with soft cover on bed. Just bought it and hope to get the mpg up to 25 or better. Waiting for my mpg gauge to show up so I can get a better idea of where I stand. My first mods planned are the following let me know what you guys think.
1. MPG gauge
2. Partial block of front.
3. under drive pulley
4. More efficient muffler
5. K&N filter
6. under body tray (way off probably summer).
7. Replace mirrors with cameras.
8. Replace fluids with synthetics.
9. LPG conversion when I get rich.
10. Experiment with shrink plastic used to cover boats
11. Install Electric Fan.
My old truck got around 20-21 hwy with k&n cold air filter, muffler, and mpg gauge.
Any other ideas out there, I live in ND so alot of exterior work is limited no heated garage.