Not sure if others have this issue but I lose pressure fairly quickly at times, with no tire damage. I can go a month without a drop in pressure and then I get a low tire warning (no I do not check every day) and sure enough I have a low tire. Refill and less than a week later it is low again. That can go for a month or so and then magically it is okay again. Has happened to both rear tires so far. All I can think of is the tire bead and thick sidewall affects.
And for those of you that think you can feel it while driving on the street I would bet you could not, until the pressure gets below 20 psi. I need a gage to find the low tire.
Damn runflats. Come on Kumho we need 19" tires.