For mpg, this was a shock to me.To be fair most Truck guys who also travel those places know the risk especially pickup truck guys. Not all truck guys use their big truck on those types of dirt tracks. But they do put thousands of miles on them dragging dirt toys to those places. Which case the LTX tires are pretty much king of the hill. But yeah they get stuck on wet grass easily. The full on KO’s and similar tires are typically a solid 3-5mpg hit and kinda suck on the highway. I had them on my trucks for yrs. My last big Moab trip 12 days 2700 miles on pavement I put the BFG Advantage T/A Sports on and don’t think I’ll ever go back to the full on KO’s or alternatives unless I move somewhere where trail fun is nearly a daily thing.
33x10.50s, I was lucky to get 17mpg. I changed to 7.50R16s.... 22mpg.
A change of tires added 95 miles to my range between gas stations. I'll never got back.