When it gets cold like this I've found that my tires aren't round for the first five minutes of driving around. This may be due to the really hard old tires or I might not have them inflated enough. My tires don't list what pressure they are supposed to be inflated, does anyone have an idea?
All my tires are tubed:
Front: Firestone Longhauler 8.25-20
Rear: Firestone Super All Traction Heavy Duty 8.25-20 10-Ply