Diamond c wrote:
You didn’t say but I would air it up to at least 110 psi then put the weight down on it and then start soaping it down good.Take your time and watch very close.
I did air it up to 110 psi, and did the soaping just around the valve stem. Nothing I could see. At this point I may take it off, and have it checked out . I am just afraid at less then a psi a day, its going to be tough to find. I can live with what its doing, but my concern is its going to go bad in a hurry , like someone mentioned ,a possible cracked rim. Also mentioned corrosion , I see a bit of discoloration on the valve stem down at the rim, a bit different then the rest.
These wheels are less then two years old. They have never had any air loss until about six weeks ago. They actually sat all winter ,without a problem., no air loss in any of them .Took it on a trip to Arizona , sat in a RV park for a couple weeks ,when I turned on the TPMS ,that one tire was down about 5-6 psi , and now as said been sitting again for the past six weeks ,and was down 25 psi. So It developed this leak on the 500 miles to Arizona . No issues prior to this trip.
Thanks for all the replies, I will eventually get to the bottom of it hopefully, could be one of the things mentioned here .