Originally Posted by
ala_xfire
Guys, I just finished checking all 19 of my car tires ( 4 cars, 3 spares ).
EVERY STINKING ONE OF THEM WAS LOW !!!
Most were around 20 PSI, the Crossfire was the best of the bunch, only 3-4 PSI low, probably because I pay more attention to it.
GO CHECK YOUR TIRES !!!!

Good thing to do on extreme temp trends (+/- 25 degrees or more) and monthly, in temperate climates. I usually hit them about every other week or when the urge hits me. As we all know, overinflation is just as bad as underinflation.