I think it's very unlikely w/ the suspension assuming you're at 55mph compared to 65mph+. The tires will be more susceptible to damage from larger obstacles like bit pot holes or rocks, but as long as your commute is reasonably smooth you should be fine.
Originally Posted by FormulaTwo
I think if i could get that type of FE i would have no problem driving a dildo shaped car.
I personally drive at 55mph, but the person who I am asking for usually does 75-80mph. They also encounter some pretty bad highways. Michigan roads are a... well, a *****. This person also carries anywhere from 100-500 lbs plus on a daily basis due to their line of work. They drive a GMC Envoy XL.
If the load range of the tire is correct for the weight of the vehicle-with a Suburban I'd say battle tank - there should be no harm in increased tire pressures . If disgression is used , that is .Try 80% of max sidewall first then bump it up 2-3 psi a tank fill to owner satisfaction or within 20-30 % *over* max sidewall . This is my personal way of testing and not a recommendation to *just do it* without owner attention .
I have run 60 psi for ~10K miles in the tires that were on my Saturn with no visible signs of uneven wear. My son's car has 55-60 psi in the same type of tires with no odd wear patterns either. They both are Goodyear Assurance Comfortread.
Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.
Before I got on this forum, I ran mine anywhere from 35-37 for thousands of miles, no abnormal wear. The car says to use 29. Now however I have them at 39 psi. we'll see how they wear after a year or so...