20DDan wrote:
Does anyone know the correct pressure I should be running in my tires? I've got Hankook Dynapro ATM tires... Fairly aged. On the tire it says 50psi but on the car it says 35psi. Canadian winter is just around the corner and this is my first Jeep and 4x4 winter experience.
Thanks for your input!
50 PSI is max inflation pressure. Under normal driving conditions, I inflate tires to 80% of maximum inflation pressure. For example: the Michelins on my Dodge 2500 are load range E with max inflation pressure of 80 PSI. I inflate those to 65 PSI. If the max inflation pressure was 50 PSI, I would inflate them to 40 PSI.
As a general rule, decreasing tire pressure will cause higher tire temperature and lower fuel economy due to increased rolling resistance. Increasing tire pressure will decrease rolling resistance, decrease tire temperature and increase fuel economy, but increased tire pressure may cause a harsher ride.