Tire air pressure

[SacRebel]

I was checking the tire pressure tonight on my new truck and the dealer had them set to 60 psi. Yet the door label says 45 psi rear and 55 front. It’ll be interesting to see if correcting the tire pressure will help with the poor gas mileage.

 

[ExcursionDiesel]

Lower pressure typically increases rolling resistance. I wouldn't expect lowering pressure to help mpg. Reducing pressure on the gas pedal works though.

 

[Chippy]

FacePalm

 

[19Jake]

FacePalm

 

[ExcursionDiesel]

60psi is high. I bet the tires were last filled in colder weather and you are in a warmer climate. Knowing most dealers, I bet they never checked them.

60psi would make for a rough ride. I run 42 front 40 rear since the roads are crap here.