Truck Maintenance & Repair, McConnells, SC

Jake and his team at Stateline Diesel Performance are First Class. They are very knowledgeable, detailed and transparent on everything.

I highly recommend this shop. Allow me to “highlight” Jake! He’s professional, knowledgeable, and attended to all my questions and concerns. Ultimately he delivered excellent customer service! -Russ R

I’m honestly surprised by some of the reviews I’ve seen, because my experience with State Line Diesel, their employees, and especially the owner has been nothing but positive.

I’m a woman who drives a big truck, and for most of my life my dream was to own a monster truck! Now, at my age, I’ve toned it down just a bit—but not too much. I lifted my truck 8 inches, changed the tires to 37s, added rock lights, cab lights, grill lights, and new wheels. From start to finish, everyone at Stateline Diesel was incredibly kind, welcoming, and made me feel right at home.

At the end of the day, this is an automotive shop. They’re not trying to win a Mr. Congeniality award—and frankly, I don’t expect them to. I don’t get offended by directness. What matters to me is being respectful, being professional, and doing quality work. Stateline Diesel is here to do great work on trucks, and that’s exactly what they did. If some people are upset about the owner’s personality, maybe that’s something they need to reflect on themselves. I’m far more concerned with skill, integrity, and results—and this shop delivers on all three.

State Line takes real pride in their work, and if something isn’t to your liking, they make it right. I truly appreciate their honesty, transparency in pricing, and straightforward feedback. At the end of the day, this is a business—they can’t give things away for free. Quality work costs money, they need to pay their technicians, and truck upgrades don’t come cheap. But when you’re investing this kind of money, you want to take your truck somewhere that genuinely cares.

State Line Diesel does exactly that, and I wouldn’t hesitate to recommend them!

I don’t think I have ever left a review before, so the fact that I am going out of my way to leave one for these folks should speak for itself.

The folks over here are honest and went above and beyond to take care of me.

Are they busy? absolutely. But that should be an indicator to you of the work that they do because people want their business. So be patient with them and give them some sympathy! Good work is hard to find in this business and they deliver it so be patient with them and they will make sure you are taken care of!

I’m definitely going to continue to do business with them. It’s very hard to find genuine people who are just trying to take care of people. Look no further if that’s what you are after.

Found this company more or less by accident. One of our service vehicles suffered catastrophic engine failure on the side of the interstate and this company came up when searching for a diesel specialist.

Pick the vehicle up yesterday so as yet I can't really comment beyond the fact that the work was done. The shop is extremely busy and the supply chain did delay our completion date.

The only important question is would you use this company again? Without a doubt, yes and I would recommend them to others.

Jake and his team continue to impress! This is the third time I’ve gone to him for work. This time was to upgrade my steering gearbox. They installed a system I can continue to grow into if I decide to go bigger. Truck now turns like it’s riding on air!! Amazing work, excellent price, and outstanding team. Thanks again Jake!

Stateline Diesel, I found them on Google. I contacted them through their website. It took about six weeks for them to get back to me with an email. At first, I was a little nervous about that. But after going to their shop I realize why it took them six weeks to get back to me. They are very busy. Which is a good thing. Because that means a lot of people use them and they do good work. It’s a bad thing because when I drop my truck in the shop. I wanted to get done quick because I was excited to get my truck fixed and back up and running. Jake and I talked about what we needed to do that will make it run better, and more reliable. After talking to him, I realize he really knew the ends of out’s of everything that can cause issues letter down the line. He offered solutions that will help the truck last longer and run better. While I was waiting on my truck to get worked on, I spent a little bit of time just walking around and observing how they operate. I noticed that there’s shop is kept clean even though they were overflowing with trucks lol. And the front lobby was kept clean. Had a nice couch to sit on to relax and a TV that I could watch. I also noticed how the employees communicate to each other. And it seems like everybody was on the same page. Even tho they were running 100 miles per hour. Overall, a great company to get service, repairs, and customization done. That will fix known issues that will make your investment run better, and last longer.

Jake & his team were so helpful with my personal company truck. We’re very informative throughout the process each time we touch base & they reached out. The truck drives as if it’s brand new, so smooth & the steering is much more stable now.

Thanks State Line Diesel Performance!

My truck: 2017 F250 XLT (2wheel drive - gas)

Needed an oil change on my F250. The guys got me taken care of. Good service.

Got 4 new tires and excellent service from here. I highly recommend.