Boyle's law comes into play here, PV=nRT, where P is pressure, V is
column, T is temp n is the "amount" of air and R is a physical
constant. Since the volumn of a tire is constant the pressure varies
directly with the temp. As the temps go up so does the pressure and air
should be let out to keep the pressure in the specified range when it
hot and put in when it cold. The pressure should be checked when the
tires have not been driven on for a few hours.
Yep I expect that given the heat wave you guys are having your tires
are probably over inflated.
Truman
Steph Teeter wrote:
However, if it's very hot the tires will over-inflate from the heat of the
pavement. I had blowout a month ago - temps were 100+ degrees, our
'normally' inflated tires were like balloons. I was told to let all the
tires out by 10-15 psi when it's that hot.
Steph
My truck tires say they should be inflated to 80 lbs, the trailer's to 60.
Yet my hubby, who is wonderful but doesn't know anything about autos or
fixing ANYTHING, says that I should not inflate the tires that high. That
They should be inflated to the manufacturer's specs. If they are
underinflated, as yours have been, the sidewalls will flex too much, will
overheat, and will do exactly as you describe.
