Tuner???
I have a 2021 F150 SuperCrew 4x4 Lariat, EcoBoost 3.5. Just had it leveled, and put on Cooper XLT 295/70/18 on stock 18 wheels. Will a tuner help any with gas mileage? I’m not concerned about horsepower.
eh barely, maybe a tad. But there aren’t tunes out yet boss. I believe just pre-order
The tuner would be worth it just to input the proper tire diameter so that your speedometer is correct AND your transmission has the correct information.
It's amazing how much better my truck drives once it has the correct tire diameter input. Without it the transmission seems to upshift and then downshift because it doesn't hit the intended rpm.
It's amazing how much better my truck drives once it has the correct tire diameter input. Without it the transmission seems to upshift and then downshift because it doesn't hit the intended rpm.





