2019 TRD-OR Poor MPG

I just completed a 300mile trip in my Tacoma. 24.2mpg on the trip. With a 3inch magnaflow cat back and a k&n Blackhawk intake. No other alterations. Traveling 65-80mph. Definitely takes some effort in pedal coontrol.
Also took a 900mile trip into and through SD in the hills a couple weeks ago. 19.5mpg on the worst tank and 21.5 on the best.

 

I think some tacomas are worse than others. My BMWs have all gotten advertised mileage at 80-90 in all conditions. My 21 tacoma got 20+ on the highway driving easy in the 70s. My 22 is getting like 16 driving the same. The airdam was removed on my sport too so its a pretty fair comparison

 

Winter fuel blends, try changing where you get gas.

 

Thats what im thinking. But i really don't get gas at the same place I change it up a lot.