tire pressure?

How far away is your friend's house?  More than five miles? 

When you drive your car for a while, the tire heats up and the pressure increases.  But when you park the tire cools and air pressure decreases.  Maybe that's why your bumper is higher when you arrive but lower when you leave. 

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• 离得近，拼车时顺带接送孩子，车不熄火的，车胎温度压力是一样的。 -日月茗- ♀ (0 bytes) () 04/06/2022 postreply 08:55:00