I’m running 36 psi front and 32 rear. Chalk tested my 19 Raptor and that’s what I used on it. So far, @ 20,000 miles tires are wearing well. Rotating around 8,000 miles. I do up the pressure to 38 all around when towing 7K travel trailer.
On mileage, around town in stop & go traffic I get 15.5 to 17.
Just made a trip to lower Alabama over the weekend and got 21 mph @ 60 to 65. Last trip at 70-75 was just over 20 mpg.
I live in the Florida Panhandle where it’s fairly warm and pressure rises several psi when driving.
I’m also a bit on the “Older” side and don’t drive too aggressively most of the time.