Yes, that's pretty accurate. If you travel 70mph plus, it gets down to 17.5mpg or so. I think, not positive, it is the gear ratio in the rear end. Has to be. Had a FX4 and it got the same as a Sport I had that was 2 wheel drive.
I just did mine. Both updates actually. Have a '21 Tremor Lariat. I paired mine to wifi and did something else for awhile. It took "Awhile" too. Hope maybe you can do this?
Ok so in my pics I believe I show my audio build. Buuuttt, to hook up to existing receiver I had to buy a digital converter. I changed all the speakers, sub, it has crossovers all that jazz. I'll try and look it up to give you the name of the piece, you can see
I have been through this, but I had one fob. If you go dealer they are correct. Vehicle must be towed or however you can get there. The fobs with the keys a locksmith can do that. Either way it is not cheap. Now a days you just can't lose keys.
Raptor looks like it's big brother, killed it for me. That interior is awesome though. Luv that stubby shifter. Only Wildtraks I saw were 305A. I have a Lariat soooo... oh well. Enjoy though.