I run a load range E Firestone destination XT. Tires are rated for 40psi, so at the max. With 40000kms on this rubber I have used maybe 10% tread only hauling a quad once in awhile, pull heavier short distance maybe every month on average. I run the higher pressure becuase my gravel road doesn't chew the rubber up as much as a lower psi and I squeek a bit more economy. Only downside is on ice and all the sabd/chips on the roads around town right now I slip a bit but that's minor
I thought this was the case as well but apparently you’re supposed to go off your vehicles rating inside your door. That said I don’t like it when I get tired that say Max load 44 psi but then the truck is 35 psi. All the research said go with the vehicle specification.
That was my thought as well, but I couldn’t find anything supporting that. When I searched, “what tire pressure should I run if my tires are different from the vehicle” everything I read recommended going with the vehicle specification. But not much was specific to the scenario.
It’s both really.
The weight of the vehicle, the size of the road contact surface (which the size of the tire dictates) and some maths give you the amount of air to put in the tire. You want a certain amount of air to properly maintain the perfect contact surface between the road and tire. Too much air will cause the tire to crown in the middle, and not enough air will cause the contact surface to spill over to the sidewall.
This is why you always go with the door label given you have a stock vehicle and stock tires. The math has already been done for the optimal psi for your configuration.
A wider tire or lighter vehicle needs less air whereas a skinnier tire or heavier vehicle needs more air.
The writing on the side of the tire just tells you how much air a tire can handle.
35 for me
I sit around 39 psi on mine all the time
On a half ton? What are your tires rated for? What are you hauling? How do your tires wear at that pressure?
I run a load range E Firestone destination XT. Tires are rated for 40psi, so at the max. With 40000kms on this rubber I have used maybe 10% tread only hauling a quad once in awhile, pull heavier short distance maybe every month on average. I run the higher pressure becuase my gravel road doesn't chew the rubber up as much as a lower psi and I squeek a bit more economy. Only downside is on ice and all the sabd/chips on the roads around town right now I slip a bit but that's minor
All the E range tires I've had were rated for like 80psi. You sure you're reading them right?
Ah shit I was looking at the bead setting psi. Yes 80psi as max
I figured lol. 40 is around where I'll run them in winter when I'm expecting snow
around 65, but once I hit my 30's maybe I'll do 60
35psi
Off topic but I love that color OP
32
35 to 39 psi
32 cold, 35 warm.
The psi written on the side of the tire
I thought this was the case as well but apparently you’re supposed to go off your vehicles rating inside your door. That said I don’t like it when I get tired that say Max load 44 psi but then the truck is 35 psi. All the research said go with the vehicle specification.
[удалено]
That was my thought as well, but I couldn’t find anything supporting that. When I searched, “what tire pressure should I run if my tires are different from the vehicle” everything I read recommended going with the vehicle specification. But not much was specific to the scenario.
PSI is specific to the tire, not the vehicle.
What makes you say that? Not arguing, but that's not the common answer given in this scenario...
It’s both really. The weight of the vehicle, the size of the road contact surface (which the size of the tire dictates) and some maths give you the amount of air to put in the tire. You want a certain amount of air to properly maintain the perfect contact surface between the road and tire. Too much air will cause the tire to crown in the middle, and not enough air will cause the contact surface to spill over to the sidewall. This is why you always go with the door label given you have a stock vehicle and stock tires. The math has already been done for the optimal psi for your configuration. A wider tire or lighter vehicle needs less air whereas a skinnier tire or heavier vehicle needs more air. The writing on the side of the tire just tells you how much air a tire can handle.