A truck has a very large area of drag with the bed. My project covers the bed to reduce the drag on the truck and improve economy.
I have a 2000 GMC Sierra extended cab 4x4 with a 5.3L V8 with 180k miles for one vehicle
and I have a 2003 Chevy silverado extended cab 4x4 with a 4.8L V8 with 106K miles for my other vehicle
Both have been recently serviced and are currently getting approximately 15 MPG. I plan on getting a monitoring device to monitor the economy via the OBD2 port so I can more accurately plot the economy and any changes as they happen.