Forum Discussion
Arizona_Kid
Sep 08, 2014Explorer
This from Bridgestone:
"Why do brand-new tires lose air pressure?
Air molecules are very small. And rubber, though it looks very solid, is, at the microscopic level, a sort of tangled, fishnet-like mass of long, stringy molecules.
Over time, air molecules can make their way through the maze of molecular chains and escape to the outside world. Basically, they go right through the sidewalls.
A truck tire can lose 2 psi per month, even when brand-new and properly mounted. That’s 24 psi a year, which would take any tire way below the run flat level. It’s another reason we place so much emphasis on regular inflation pressure maintenance."
"Why do brand-new tires lose air pressure?
Air molecules are very small. And rubber, though it looks very solid, is, at the microscopic level, a sort of tangled, fishnet-like mass of long, stringy molecules.
Over time, air molecules can make their way through the maze of molecular chains and escape to the outside world. Basically, they go right through the sidewalls.
A truck tire can lose 2 psi per month, even when brand-new and properly mounted. That’s 24 psi a year, which would take any tire way below the run flat level. It’s another reason we place so much emphasis on regular inflation pressure maintenance."
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