Steve, I feel your pain but we are all in the same boat. The cost to modify a rig in order to squeeze an extra 40 miles a tank is usually ridiculous. My only options are to always dump and travel when ever possible in the morning. Looking at your rig and Jefe4x4 rig reveals one big difference. 2012 vs 2020. Having a new truck is always nice but the cost IMO is too much if all you want is 10% more mileage. I will stick my neck out and offer a solution. Here goes, why not elect a leader who gives us 2 dollar gas rather than 5 dollar gas.