Name: Rocky Mountain Diesel Services
Address: 150 E 18th St, Greeley, CO, 80631, USA
Telephone: (970) 356-2672

At Rocky Mountain Diesel & Auto in Greeley, CO, we are committed to providing our customers with a professional and fair experience. We specialize in diesel engine repair and maintenance services, as well as auto repair services, including brakes, tires, and transmissions. Our team of experienced technicians uses only the highest quality parts available, and we stand behind our work with a nationwide part and labor warranty. We are dedicated to ensuring that your vehicle is running smoothly and efficiently. Contact us today to schedule an appointment and experience the difference that our expert services can make.

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Diesel Emission Testing

Rocky Mountain Diesel Services offers diesel emission testing for vehicles from light-duty pickups to heavy-duty semis and RVs. Starting at $85. We also offer VIN verifications. No Appointment is Necessary.

Why Choose Rocky Mountain Diesel & Auto?

Licensed and Experienced Experts

Friendly and Professional Service

Commitment to Excellence

At Rocky Mountain Diesel & Auto, we pride ourselves on being a reliable and trustworthy auto repair shop in Greeley, CO. Our team of experienced and knowledgeable technicians specialize in diesel engine repair and maintenance services, as well as auto repair services, including brakes, tires, and transmissions.

We understand that when it comes to your vehicle, you want to be confident that you are receiving the best possible service. That’s why we are dedicated to providing our customers with great and reliable service every time they visit. Whether you need routine maintenance or major repairs, our team has the skills and expertise to get the job done right. Contact us today to schedule an appointment and experience the difference our team can make for your vehicle.

If you are ready to see how the licensed, experienced, and personable team of auto experts at Rocky Mountain Diesel & Auto can help keep your car in brand-new condition, visit our contact page today to get in touch with a member of our team.

What Our Customers Are Saying

Diagnosed and worked on my truck that I thought was shot. Totally fair, honest, and did a great job. Trucks running like a dream. Mando and his crew were super helpful to work with. I would definitely recommend Rocky Mountain.

- Michelle G.
I first came to this shop as I needed to get emissions done on my 2015 ram 2500. After interacting with the staff and the owner, Mondo, I quickly came to count on them for anything mechanic related to my truck. They have treated me fairly and honestly. There is no other shop I will trust with my truck. I highly recommend this shop!

- Jon T.
Got my Hyundai serviced for emissions. Couldn’t pass because of the O2 sensor but they fixed it and I passed! Nice staff, fun atmosphere, great prices!

- Amanda V.

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Got my truck in and out within a day and the owner cared for me and my wallet more than any other shop I’ve experienced. I’m definitely coming back next time I have any issues!

- Josh R.

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Had Rocky Mountain Diesel do a complete engine swap on my vehicle and it has been running like a champ ever since! Great communication, great mechanics, and Mando is great to deal with!!

- Miguel G.

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Diagnosed and worked on my truck that I thought was shot. Totally fair, honest, and did a great job. Trucks running like a dream. Mando and his crew were super helpful to work with. I would definitely recommend Rocky Mountain.

- Michelle G.
I first came to this shop as I needed to get emissions done on my 2015 ram 2500. After interacting with the staff and the owner, Mondo, I quickly came to count on them for anything mechanic related to my truck. They have treated me fairly and honestly. There is no other shop I will trust with my truck. I highly recommend this shop!

- Jon T.
Got my Hyundai serviced for emissions. Couldn’t pass because of the O2 sensor but they fixed it and I passed! Nice staff, fun atmosphere, great prices!

- Amanda V.

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Got my truck in and out within a day and the owner cared for me and my wallet more than any other shop I’ve experienced. I’m definitely coming back next time I have any issues!

- Josh R.

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Had Rocky Mountain Diesel do a complete engine swap on my vehicle and it has been running like a champ ever since! Great communication, great mechanics, and Mando is great to deal with!!

- Miguel G.

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