Quote:
Originally Posted by Stealthee
I think the issue has to due with the material
corroding. If you keep the bead nice and clean
every time a tire gets changed the issue will not
happen as much. I have aluminum wheels on my
Lancer and I've only had to put air in one wheel
twice all winter. That wheel was repaired at one
point due to a crack in the bead area on the backside.
The other 3 wheels have maintained proper pressure
all through the temperature swings, but I thoroughly
cleaned the bead areas before tires got mounted.
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But if mine were a dirty beads issue wouldn't my pressures be all over the place(front left 27psi, rear right 30, etc)?
I keep my wife's and my pressures to within 1/10th psi of where they should be. When the temperatures drop, as they did last week going into this week, my wife's dropped only 1psi(all four tires), and mine fell 2-3psi(all 4).
Conversely, in summer, pressures on both our car's tires increase at about the same rate.