losing air from rear tire
I have a slow air leaking tire. About two weeks ago I check the tire pressure (after reading a thread regarding tire pressure, of course) on my rear driver side tire and it reads 24. So, I fill the air to 36 psi then after a week I check it again and it reads 20. What is the possible reasons for this to happen? Is this something the dealer can fix or replace? Or should I just go to local tire shop and have them check it out. I inspected the tire itself and it does not seem to be punctured anywhere. Thanks.