Past few weeks rear driver side tire seems to want to settle down about five PSI below spec. I kept putting air in and it would be good for day and then seem to magically drop five PSI. Even stopped by Costco and filled the darn thing with nitrogen. Still lost air. Was all set to head for Les Schwab tire shop and have them look for the slow leak when my slow mind had an "Ah Ha" moment. I dug out my little valve stem tool and tightened down the stem. Three days, no leak. I will blame it on what my elderly mom used to call it -- Old Timers Disease.
