Anyone else have this problem? These Bridgestone 689 H/Ts always need air. I check the pressure at least weekly. Twice I've awaken to a flat tire. I thought it might be neighborhood kids because it isn't always the same tire. I watched one tire yesterday, last night, and today. I had put 35 lbs in it and by this afternoon it's definitely losing air. I also had to pull the spare off this week because it was flat. The spare used to be the front left but it was losing air. Dealership could not find anything wrong. Put it back as the spare & I haven't had a problem with it since other than checking the air and keeping them at 35 lbs. What gives? Coincidence? Wheels? I did a search but did not find anything like this.