Help me understand this.
As you all are aware, running the recommended 45+ psi in a E rated tire makes for a bone-jarring ride. I've been running MTs for several years now and keeping them at 25psi, but I'm ready to change over to ATs. My question is, when we run an E-rated tire on our Jeeps, does airing down like this lead to abnormal wear patterns? Strictly speaking of highway driving.
I can understand how keeping a tire deflated like this would cause problems when the tire is installed on a larger vehicle, because it's heavier. But, I can't wrap my brain around this being a problem when they are used on a lighter vehicle.
My brain has me seeing it this way:
Lighter vehicle = less sidewall compression.
Less air pressure = mimicked sidewall compression. More of what it would experience with a heavier vehicle.
Thus, deflating to 25-30psi wouldn't have much of an affect on wear patterns.
It's been explained to me, and said to be wrong thinking, but I'm still not grasping it. I keep resorting to the thinking that I just mentioned.
As you all are aware, running the recommended 45+ psi in a E rated tire makes for a bone-jarring ride. I've been running MTs for several years now and keeping them at 25psi, but I'm ready to change over to ATs. My question is, when we run an E-rated tire on our Jeeps, does airing down like this lead to abnormal wear patterns? Strictly speaking of highway driving.
I can understand how keeping a tire deflated like this would cause problems when the tire is installed on a larger vehicle, because it's heavier. But, I can't wrap my brain around this being a problem when they are used on a lighter vehicle.
My brain has me seeing it this way:
Lighter vehicle = less sidewall compression.
Less air pressure = mimicked sidewall compression. More of what it would experience with a heavier vehicle.
Thus, deflating to 25-30psi wouldn't have much of an affect on wear patterns.
It's been explained to me, and said to be wrong thinking, but I'm still not grasping it. I keep resorting to the thinking that I just mentioned.