I was fortunate in not having to drive the the vehicle I brought in everyday, so I could leave it with RayAMotive for an extended period of time. I had a difficult issue with my engine that I couldn't fix after a lot of work and effort, so I brought it to Ray. They had worked on it a year ago, and with some time the problem was found. Part of the corrective work that was done involved a previous part that was installed a year earlier, and they replaced that part at no charge! Runs great now at 100,000 miles and I am hoping to get that much more from the engine!