Asked to have some oil leaks looked at on a 300,000 + mile Cummins in mid April this year. They provided an estimate, and while repairing were able to let me know about some items that would eventually need replaced as well. As I depend on this pickup not breaking down, I asked them to repair all issues they ran across. They provided great documentation as to the work done, an itemized invoice and a smooth running truck back to me. That was about 8,000 miles ago and the pickup is still running great.