True fuel milage for 2025 ram 1500

[madfire]

Hi all. Just got my 2025 rebel and drove 250 miles on the freeway. Best I got was 15mpg. 72 to 82 mph. Is this it or will it get better? Also got a service tpm sensor code. That went away.

 

[Mx113]

I just drove home in my new bighorn. Dash said 22.1 mpg. Hand calculated was 21.4 mpg. 470 miles of mostly interstate travel. SST engine