I have lost 25 lbs of air pressure in one tire in the past 6 weeks or so sitting in the driveway . Turned on the TPMS to check for the upcoming trip , and three were 102 psi. , the low tire was 77. ...
Do you or someone near you have a Kiddy pool that you could put the tire/wheel into?? I had a slow leak in a brand new unit and couldn't find it, took it to a tire shop and they put it in their dunk tank and found a pin hole in the Rim it's self.