Driving through in vacation with our trailer and the Alternator went out. Called and got a super…read morefast response from Phill. Came out first thing in the morning and had it fixed within an hour. Very nice and very knowledgeable. Thanks for taking such good care of us.

From the owner: On Spot Mobile Repair: Your Local, Affordable Mobile Auto & Truck Service…read more Welcome to On Spot Mobile Repair, your go-to locally owned and operated mobile repair service in Casper, WY and surrounding areas. We specialize in on-site repairs for both cars and semi-trucks, offering fast, affordable, and convenient service wherever you are—whether at home, work, or on the side of the road. Our expert mechanics handle everything from routine maintenance to complex repairs, including engine diagnostics, brake repairs, suspension services, and transmission work. Whether it’s a quick fix for your car or heavy-duty repairs for your truck, we’ve got you covered. Our services include: Engine Repairs & Diagnostics Brake System Service Suspension & Steering Oil Changes & Preventive Maintenance Transmission Services Heavy-Duty Semi-Truck Repairs At On Spot Mobile Repair, we’re committed to providing affordable and transparent pricing with no hidden fees. We value your time and aim to get you back on the road as quickly and safely as possible. Call or text 307-797-2005 or to schedule an appointment. Fast, reliable, and on the spot—wherever you need us!

Robert and his team are absolutely amazing. My family and I were traveling from out of town and my…read moreengine light went on (on my Chevy Silverado, that's only 4 years old and still under warranty). We went to the 2 GM dealerships in town and they were only able to see me in 2-3 weeks, even though they knew we were 1200 miles from home. Their only recommendation was to go to the Toyota dealership across the street. We were lucky enough to find Dayton Transmission. We told Robert over the phone what our situation was and he told us to come in and see what he could do. Although he couldn't fix the problem he was able to do a transmission flush and change the filter which would at least help get us home. We asked him if there was anything near by where we could walk to eat or if there was a taxi service. He said there wasn't. Instead he did the most amazing thing ever and let us use his personal vehicle to drive to get lunch. Thank you so much Robert for being so kind and hospitable.

Moms trusts this place she got Her fluid looked at and they…read moresaid it was good. One see us in couple years. Also my brother got a tow it free to check out his wouldn't go in reverse. They fixed it. Expensive on tranny fluid exchange though

I was passing thru Casper, WY and was staying at a hotel. I called and spoke with Todd. He was very…read morefriendly, professional and knowledgeable. I told him I needed an oil change and the Hyundai dealer recommended to change the drive belts. He said they were busy, but he'd squeeze me in since I was from out of town. He called me back in about an hour with an estimate. Although it seemed a little high, after explaining how he came up with it, I agreed. I took my vehicle in on Wed. Todd was nice enough to drive me back to the motel, and then when it was finished a few hours later, came and picked me up. The total was less because they didn't need to put in a full synthetic oil. I appreciated his honesty, getting me an appt. in spite of being busy, and going out of the way to take me to/from the motel and how fast they did the work. For these reasons, I would highly recommend Doyle Johnson's whether you live here or you're from out of town.

Great service at reasonable prices! Highly recommend, will use them again. Can't say enough good…read moreabout them.

These guys rock!!! Had transmission issues on our way to South Dakota pulling out 5th wheel. They…read morefit us right in even though they were packed with other trucks ahead of us. They spent a couple of hours diagnosing the problem and even though they couldn't fix it (due to lack of parts availability), they secured parts for me at a dealership in Rapid City and also showed me how to do the repair myself. I wish they had this shop and staff in

These guys know how to work! They get right to it and don't dilly dally around. In other words…read morethey don't wait and shuffle their feet I like their attitude of getting it done and they are very nice.

Tom / Master Mechanic is excellent. I was travelling to Casper to help family with a difficult…read moresituation when the transmission on my Nissan Frontier burned up. I had to return to Denver while Tom took it in for repair. There's nothing like being from out of town when you have car trouble, especially serious car trouble. I felt totally vulnerable. Tom / Master Mechanic was excellent though. He shopped around for a good used transmission, installed it and it runs like a top. I couldn't be happier with the result. We have some very good mechanics here in Denver, Tom's shop is as good as any of them and he's as honest as the best of those.

Worst mechanic I've ever dealt with. I called last week to make an appointment for a diagnostic and…read moremade an appointment for 8 am Monday. I called at 10:30 to see ho close they were so I can come by on my lunch and they haven't even looked at it. When I questioned why I had to make an appointment the lady got real short and rude and said to just come get my truck. I will never go back and will tell everyone to stay clear.

I really appreciate how today this mechanic manager/owner Eric took care of my car needing a new…read morebattery. He was professional & cordial, and even though initially I was a bit stressed out after my car was off the tow truck, Eric and his assistant were very mellow and kind. I would definitely recommend this shop, as Eric is knowledgeable and thorough, as well as reassuring about what truly needs fixing. especially as a woman, I found it refreshing that he didn't try to upsell a bunch of stuff that I didn't need, he kept everything simple. This mechanic is patient and easy-going, who I will trust for my car's needs in the future also. Plus, his shop is very spacious and you can tell just by looking around that these guys really enjoy working on cars and trucks. Thank you, "Dr. Eric"! Melody with the antique Toyota Camry

From the owner: Is your car long overdue for an oil change? Do you need to get your tires rotated? N.E. Auto Repair…read moreis the place to go. You can rely on us for exceptional auto repair services in Casper, WY. We can take care of all your routine auto maintenance needs, from oil changes to tire repairs.