Xtreme Diesel Testimonials

Proud to serve commercial, enterprise, and diesel truck owners in Northern California

As the manager at Johnny on the Spot, I'm pleased to share our exceptional experience with Xtreme Diesel. Maintaining our fleet of trucks is crucial to the success of our business, and XD has proven to be an invaluable partner in keeping our trucks on the road. From the very beginning, Jason and his crew at XD have demonstrated expertise and dedication. Their repair services have ensured that our vehicles are always in top condition, minimizing downtime and maximizing efficiency. Whether it's routine maintenance or emergency repairs, Jason at XD consistently delivers prompt and reliable service. What truly sets XD apart is their commitment ot customer satisfaction. Jason and his crew are not only skilled but also courteous and professional. They take the time to explain the repairs needed to provide transparent cost estimates, allowing us to make informed decisions about our fleet management. We have complete confidence in Jason at XD to handle any isue that arises with our trucks. Their knowledge, honesty and attention to detail have consistently exceeded our expectations. Thanks to XD we can focus on our core business, knowing that our fleet is in the best possible hands. In summary, XD is an outstanding company that offers top-notch repair services for everything truck and fleet. We highly recommend them to any business in need of dependable and high-quality maintenance. XD had been a game changer for Johnny on the Spot, and we look forward to continuing our partnership for many years to come.

Mitchell W. Kidder


May 2024

Ask Our Partners About Us

Extreme Diesel has been our trusted repair shop for our fleet of trucks for years. They have the knowledge and experience to tackle any repair. Thanks Xtreme Diesel!

Steve Oliva

VP, North Valley AG Services

June 2024

Northern California Clients

Jason knows his stuff. Most honest guy, easy to talk to, gets prob fixed right; what more can I say.

I brought my diesel in and it was running like crap. By the time I got it back, it felt like new... Actually better than new because of a slight upgrade. It has never been so powerful and fun to drive!

Besides, it has to be a five star because he has tons of work and people who go to him, that's based on the fact that he's always got a full lot of vehicles for him to work on. But he moves through quickly; I never have a long turnover, and one of my issues was not so small.

Kyle E.

I just had my Cummings diesel repaired at xtreme diesel and could not be more satisfied. Jason is a very hard-working man and spent many hours diagnosing my problems. He was very fair with his prices and time.

I would never go anyplace else, if you want honest repair this is the place to go. As you probably know there are very few places to get diesel repair. The other company that's been in Chico for quite some time on Highway 99 has a very bad reputation. My personal experience with the other company motivated me to seek out a new repair facility. My grandson recommended xtreme diesel, he is much smarter than he looks.

Thanks Xtreme diesel - YOU ARE THE BEST!

Robert F.

I went to a few places both in Chico and Oroville to see how comfortable I felt with them and for quotes. The quotes for labor (I purchased the new muffler and exhaust brake myself) seemed so steep I was about to do the work myself... I called Aftershock Performance in Chico and they referred me to Jason at Xtreme Diesel. I called Jason then went in to briefly discuss what I was looking to have done. When I called, he came across a little hard to talk to. When I went in, he's just extremely quiet. But, after our short conversation, I got a better sense of him and felt I could trust him with my baby (truck). After 28 years in law enforcement, I don't do so easily. His price was EXTREMELY fair considering the outrageousness I was quoted by the other places. He's earned a customer here. Big shout out to Aftershock for their honesty and for the referral to Jason!

Mark C.

We have been doing business with Extreme Diesel for 10 years and have never once been disappointed with their integrity, honestly and quality. They might not be the cheapest mechanic in Chico but you get what you pay for folks. Get it taken care of the right way the first time.

Jennifer S.

Great experience at Extreme Diesel. Originally thought the torque converter was going but they diagnosed the issue quickly and determined new U-Joints and carrier bearing were needed to bring the driveline back to par. They got us in and out of there in the same day so we could get back to work! Big thank you to the staff and owner

Brian H.

Best place I've ever taken my truck to get worked on. Knowledgeable, fast, and best customer service I've experienced with a shop. I own a Duramax and would trust the guys at Xtreme Diesel with my truck any day of the week. Highly recommended.

Mark C.

Get In Touch


2246 Esplanade Suite C, Chico, CA 95926

Assistance Hours

Mon – Fri 9:00am – 5:00pm

Saturday - Sunday – CLOSED

Phone Number:

(530) 898-1001

2246 Esplanade suite c, Chico, CA 95926, USA

Office: 2246 Esplanade Suite C, Chico, CA 95926

Call (530) 898-1001

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