George and his staff are first class. Very knowledgeable and quick to get you in and out. They deliver quality service at a good price. Highly recommend if you need a diesel mechanic in Cheyenne area. - Josh F. (5 star review on Google)

If you have a diesel, this is the only place to go for service. They have worked on my 7.3L twice and both times have been top shelf. They are above all, honest and will not try to do more than is needed. What they do is also done right and complete. My truck has never run better and nobody will work on my truck but Mr. Diesel. To have a good diesel repair shop that you CAN trust is worth everything. - David W. (5 star review on Google)

Integrity says it all for this shop. We were passing through Cheyenne pulling a fifth wheel and had been dealing with emission problems while headed south from Montana. We pulled into Mr. Diesel at 7:30 am and were back on the road at 7:45am. They scanned our check engine light, deleted the code, assured us we were safe to continue on our trip and charged us nothing. They did it all with an amazing attitude of service. We can't say enough good about them. We had two different Dodge dealers tell us it would be at least a week before they could even look at our truck. - Dick R. (5 star review on Google)

Great shop with honest prices, and they stand behind their work. - Brandon S. (5 star review on Google)

I've taken a few vehicles there from other places that have messed up on my car. They always fix the issue. They get my vehicle in and out. It does help that I know the issue so they can fix it faster. The price here is AMAZING. They are also military friendly. They do not hassle or push or try to lie to you. Communication is great with them. I will keep coming back to them for all my vehicle needs. - 5 star review on Google

Quick, fast service. They are very helpful and fixed our problem. Helped us with no wait! We are traveling from Indiana to our home in Idaho. - Cathy S. (5 star review on Google)

The fact that this shop isn’t gouging like most others is impressive. I’ve been stolen from a few times before coming to Mr Diesel, With shabby results from the places I’ve been. Thanks to Mr Diesel my 96 12 valve is running better than it ever has as long as Ive owned it. A 660,000 mile truck too mind you. And also because this crew of gentlemen understand the nature of the beast for a welding rig, they got it in and out super fast with purpose. Thank you Mr Diesel, I appreciate you. - 5 star review on Google