I came here by chance when my car had a flat tire, slow leak. At first they couldn't find the leak, after two hours they determined it was some type of rusted beading. After cleaning it up sent me on the way. I was able to drive to two places in Concord before going home, still no signs of an issue. This morning, after making it less than a mile up the road from my house, the issue reoccured. I was not near the shop so I had to go to the one I usually get my car fixed at and at first the couldn't find it either. In the end, I had to get a new tire. Service person was nice and pleasant to speak with.