Rob and Beverly,
The 4580# rating is for a bone stock F-350 with NO extras
4320# is with some more stuff added
4060 is my printed payload. I have a lot of extras like 5th wheel hitch; trailer hitch; many electrical and electronic upgrades with an inverter.
Note above all the weight of the stuff i removed to load on our Northstar Laredo.
Understand that the diesel option puts about 600 pounds more on the front axle and reduces the payload by about…..600 pounds.
We just returned from the 2021 TCA Rally and put 1500 miles on our new sled. Going south with the wind @ 65 mph mostly on freeways netted us 13.5 mpg with our 10K pound loaded TC over 688 miles.
However, the trip back north netted us only 11.2 mpg as we had a continuous 40-50 mph desert headwind, slightly off straight, the worst case scenario, and had hours of detours through city streets with signals every block, basically the worst.
Also, we did the Bradshaw trail, and the diesels outperformed the gasser in mpg while in slow-mode.
I’ll be publishing a piece on here entitled: GAS or DIESEL: CONSIDERATIONS. In it I review the yeas and nays of each.
2020 Ford F-350 XLT FX4 4WD SRW SB SC 7.3L Godzilla Gas TorqShift 10R140 397 amps dual Alt dual batts Frnt Dana 60; Rr Dana M275 E-locker 4.30's 4580/4320/4066# payload 7243# curb wt. 11,300# GVWR 5-er prepped. 2020 Northstar Laredo SC, 12v compressor fridge, cassette, 320w Solar sub zero insulation.