JJ Diesel Dogs 15551 East 6th Avenue, Aurora, CO 80011

"Jamar and Jonathan were straight up with me they changed out the long block on my 2003 ford f350 7.3 L. . With a Jasper engine. Had some minor issues but they fixed them. Running great so far no problems. Will continie to update."

"I brought my truck in for power issues yesterday. He said it was just low on coolant on mu secondary system. Charged me $68 for gallons of coolant. 1 hour up the road i had to stop and buy another 2 gallons to make to Salt Lake City. First He told me he pressure checked my system and there was no leaks. I was able to make it to my destination and the 2 gallons I put in is still in the tank. As far as I'm concerned they scammed me. I would not recommend this shop to anybody unless you want to get ripped off."

"Jonathan was very patient and understanding. He helped out alot and explained everything and also tried everything to help resolve problem. He went out of his way and stayed 1 hr after closing to make sure we were able to complete our delivery. I would recommend J J recommend to anyone who has domestic diseal trucks."

"Dad broke down in his F250 with his camper while traveling through Denver after leaving Summit Ford in Silverthorne (don't recommend them) with a new turbo. Jonathan at Diesel Dog was prompt, responsive, stayed late, and, most importantly: competent! I am so thankful the crew here was able to do significant engine work and get dad back on the road in under 24 hours. We are beyond impressed. I only wish we had Diesel Dogs in Georgia."

"Place is a complete joke , $260 for basic oil change on f450 , guy says they charge $195 to just change the oil smh then pay for filter and oil on top of that , guy didn’t pull it in the shop he rolled under the truck in the parking lot. This company is a rip off and wouldn’t recommend going there."