I spent some time researching the work I needed done to my 2005 Ford F250 with the "infamous" 6.0 liter engine (208,000 mile). I settled on American Diesel Service and was not disappointed. Matt, the owner, gave me a very accurate quote on the price to "bulletproof" my truck. They scheduled the work where I could leave it at their shop for about a week and so I could make two long trips with my camping trailer to Colorado and Wyoming shortly after the work was completed. The mechanic, a different Matt, did a tremendous job replacing the parts that are often faulty on this engine along with a complete replacement of the injectors. It now runs like new and has pulled my camper about 3,500 miles with no issues since the work was completed. I live in Los Alamos, or I would use this shop for all of my diesel maintenance. I'm hoping for another 200,000 miles on my newly "bulletproofed" 6.0 engine. read more