Oct 2012 after reading reviews on 2 diesel repair shops in Yuma Az.,I was very concerned as to where I would get my 98 cummins turbo diesel tuned up.I stopped in Napa auto parts for a recommendation and was told 3:10 Diesel Works had a good reputation for a new business just opening recently. I called Dave (who I later learned was the owner), he got me in that same morning,gave me a ride and did a tune up along with other maintenance that I had forgot to take care of, ie; oil change, serpatine belt and cleand the K&N air filter. He did many other checks at no charge, inflated tires, checked all fluids, etc... Dave called me before doing the "add ons". Kept the quote he gave meand three hours later I was back in my truck which ran 100% smoother and quieter. And, it did not cost me an arm or leg. I am very happy with the quality of work, the excellant customer service,professionalism, cleanliness and orginazation of shop and office, politness of mechanics I made contact with. Thank you 3:10 YOU WILL HAVE ALL MY FUTURE BUSINESS.