Hi,
This a funny one, I think:
Have a 2009 Buick with the automatic reading tire pressures. Really neat; assuming it's accurate, you read the actual pressure in the
4 tires.Let's ay I fill them all up to 33 psi. Each tire reads then 33 on the car display. Fine.
But after a few days, one of the tires, always the same one, shows (on the car's readout) 29 psi.
The thing that confuses me is that it never goes lower. Always drops about 3 or 4 psi after filling the tires up, in the course of a few days, and stabilizes there.
I would think that if it was a slow leak, it would continually keep losing p and go down more, and more.
But this isn't what happens. Loses the 3 or 4 psi after a few days, and sits at that lower p.
Any idea what might be happening ? Is it the tire, or...?
Thanks, Bob