Even after a total work over, the vehicle came back clean. Also a call was made when other things were needed and a time frame was suggest when they needed to be done. Most importantly, the vehicle never leaked oil but did after it was returned. They went out of their way to pick up the vehicle, corrected the problem, and then returned it to me right away. (It was just that the filter did not get tightened enough...over tightening would not be good so hey..it happens) Point being, they stand behind their work.