Fall is here and falling temperatures are on the way.   As Fall progresses towards winter, the temperatures will be dropping. As this happens, the pressure in your tires will fall as well.  For every 10 degree drop in temperature, your tires will lose 1-2 psi (pound per square inch).  This means if the temperature falls from 70 degrees to 20 degrees, your tires will lose 5 to 10psi. If your tires lose 10psi, your car's tire pressure monitor light will come on (if equipped) and your tires may look visibly low.  If you are filling your tires up, take note of all the starting pressures.  If one tire is much lower than the others, you may have a leak.  If they are all about the same, fill them back to operating psi. I know, your next question is, "What is the operating psi of my tires?"  To find the operating psi of your tires, open the driver door and look for a placard in the door panel.  It will have ... read more