Tire Pressure

I never said not to follow a manufacturer's recommendations or that if you did you'd suffer imminent consequences.

Although it wasn't my intentions you were indeed confused.

 

I run my drives at 85 psi. On my super-b I run 80 psi on the tri-axle and 85 psi on the tandem. All the trailer tires used to wear on the inside at 95 psi but I'm getting nice even wear now, and a better ride on rough roads.

 

No, indeedy, I go by manufacturer recommendations, and that's irregardless of anyone elese's confusion or opinion. They can go by whatever else they want, and I wish them the best of luck. Unless the tire has a range written on it, I'm going by their number on the tire alone.

If you want to say my gauge is wrong, then it's wrong on every compressed air system I test it with, and every gauge I compare it to is also wrong. Oh well, that's the best I can do with standard equipment, make sure it's consistent.

 

Again I never said any of those things and yes we're all entitled to our opinions but that wasnt in question either.

My point is adjusting the pressure based on the weather condition's effect on the tire pressure is a bad idea and highly not recommended by most professionals and manufacturers due to an increased risk of blowout and unnecessary time off of the road spent adjusting the pressure. But seeing as though some truckers don't understand the gas laws, they wouldn't understand why it would be the case. That's all.

What you do and how you do it doesn't effect me and hopefully not anyone else either.

 

That doesn't really concern me, I was aware of it, but if I check pressure daily, the weather doesn't change so drastically that I should ignore underinflation or overinflation for an entire season. I'll adjust pressure when necessary. Pretty much nobody even checks it where I've worked, so I'm more concerned about that than the weather.

 

Regional and local drivers are less susceptible to varying conditions than OTR drivers are and pertaining to the former I'd say you're absolutely right.

 

I have been seeing varying duals lately, one rated at 120, the other at 105. Something to be aware of, you can't always go by what's on the outer for the inner.

 

I'm talking about after you properly check the pressure using a gauge.

Unless the pressure of the tires were different from the start then there should always be an explanation like the outer one getting more exposure to the sun or something.

So basically I agree it's always good to keep those things in mind.

 

It is the MAXIMUM pressure for that tire at the MAXIMUM load. NOT the recommended pressure for normal use.
Just went and looked at a tire. This is what it reads. " maximum load 5675# at 110 psi cold".
Means just what it says.
Figure it out. 4 tires at 5675# each can have a maximum load of 22,700 pounds. That's one drive axle or one trailer axle.
Normal tandem axle carries a maximum of 17,000#. That's 34,000# for both axles, all 8 tires.
Now if it's on a spread axle trailer it can go to 20,000#.

So the 110 psi is more than enough for the spread axle. And way more than enough for the normal tandem axle setup.

As has been stated several times if you want to know the proper inflation pressure look at the load/inflation tables. Not Bubba at the tire shop who was told by his buddy who had an uncle who once knew a guy that heard you are supposed to put ### in truck tires because that's the way we always did it.

 

Wait long enough and someone is sure to post what a lot of us are thinking. Good job b-man lol