Increase Tire Pressure on 2005 F-150 Screw
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Hot and Cold tire pressure. Air expands when it is heated, and does so even in your tires. The air is heated after you have driven your truck, which would be your Hot tire pressure. Cold tire pressure is when your truck has not been driven and the pressure is checked, usually 1st thing in the morning or after it has sat for a while.
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Originally Posted by 2005F150
The factory tire pressure on 18" stock Lariat Screw is 35 psi. I increased to 40 psi and my truck rides so much smoother. IS there any problem with increasing 5 psi?? Also, what is difference between cold and hot tire pressure?? Thanks.
Nope, I don't think 5 psi will make a big deal. But then again that is only MY opinion.
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Does anyone know what the increase is between cold and hot psi???
I've found that when I run 35 in them, the "hot" psi is some 15 psi more..... (I just use my gauge and see what it is...) Making them about 50 psi.... When I do the same run @ 40 psi, in ~ the same temp, they are actually only running around 45 psi..... Feel cooler to the touch too....
Now, that's on a set of four trailer tires that are running pretty much at their max load rating... On a truck, you are not even close to the max load ratings of the tires, so at the worst you would be doing is wearing the centers down a little faster.... BFD....
Let the 'P' rated tires wear out... Then get some LT load range C tires and you'll be a much happier camper! I know I was when I made the switch! I run 'em at 44 up front and 40 in the rear when empty. When I load it up, I'll run 'em all at 50.. Works for me and I've gotten a solid 40k miles out of a set of tires with lots of tread left, but I just wanted new tires! I'm on the same mark with my current set of tires now!
Good luck!
Mitch
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