Gas mileage

I’ve been averaging about 20.8 or so combined city and highway. If I’m on back roads with no traffic, I’ll get closer to 25mpg. On a trip from Indy to NC last year, I averaged about 24mpg. My truck only has 3500 miles on it, so it may improve as it ages. If not, I’m happy with were it is now. Sure beats the 13.5 I got in my F150 and 12.5 I got in my Jeep.
I feel your pain bro! My 15 Wrangler with 35x12.5 M/T got around 13 mpg. What amazes me is my 2018 Mustang GT 5.0 Coyote / 10 speed auto will deliver 31.1 mpg at 60 mph flat ground. That's 460 HP and no cylinder cancellation.
 
I have a 2017 Sport with leveling and 33s. Getting 18 all around. Actually got 21 on highway road trip driving 70. And yes, I have a speedo calibrator cable installed to even everything out. I’ve checked both manually and using computer, the same.
 
I feel your pain bro! My 15 Wrangler with 35x12.5 M/T got around 13 mpg. What amazes me is my 2018 Mustang GT 5.0 Coyote / 10 speed auto will deliver 31.1 mpg at 60 mph flat ground. That's 460 HP and no cylinder cancellation.

I live in mountains and twisty roads, don't drive my mustang for best mileage, and I still get 26.5 mpg combined city and hwy.
These new V8 engines get great fuel mileage.
 
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