Jon Elson wrote:

I'm almost tempted to check the air pressure on my car tires and then jack
it up and check again. It is a no brainer that pressure in tire increases
when a load is put on it since the bottom compresses, the air compartment is
restrained and the car is hanging from the rim.
The change in tire pressure when the tire is loaded is quite
small. maybe a couple PSI at the most.

What if one lowered initial inflation pressure? Seems like variatio from
loaded to unloaded would increase.

Wes