2020 F-150 3.3 Fuel Economy

[decipha]

As the title states I'm curious if anyone has any insight on fuel economy improvements with tuning? Right now shes knocking down a solid 24mpg hwy and 20mpg with mixed mostly hwy and some city.

The 6R80 shifts horribly in these things with severely late shifts at low throttle accel that whines the engine out and extremly late downshifts on decel that causes her to lug horribly.

I was hoping to get some input before I void the warranty lol.

[Jaimeteddy]

I also own an F150, and the repair center advised me to use fuel-efficient tires on my car. How are you?

[decipha]

I have then pumped up to 44psi.

35 to 44 made no discernable diff but every little bit helps