Lone Star Diesel Solutions is your trusted partner for expert mobile diesel repair and maintenance, proudly serving San Antonio, TX, and all surrounding areas within a 150-mile radius. As a locally owned and operated service provider, we specialize in keeping commercial trucks, agricultural machinery, construction equipment, and oilfield vehicles operating at peak performance. Whether you manage a large fleet or a single hard-working machine, our mission is to deliver dependable, on-site service that keeps you moving.

South Texas industries operate in some of the toughest environments in the country. From blazing summer heat to rugged oilfield terrain and heavy-duty farm workloads, diesel equipment must withstand extreme conditions every day. At Lone Star Diesel Solutions, we understand these challenges. That’s why we’re committed to providing fast, high-quality, and long-lasting repair solutions that meet the demands of your operation.

Our certified diesel technicians bring years of hands-on experience, advanced diagnostic capabilities, and fully equipped service trucks directly to your location. This means no towing fees, no wasted time transporting equipment, and no extended shop delays. We work efficiently on-site to diagnose issues accurately and deliver repairs that get your equipment back in service quickly and safely.

From engine problems and electrical failures to hydraulic issues, DEF system troubleshooting, and routine maintenance, we offer comprehensive services tailored to the unique needs of your equipment. Our goal is simple: minimize downtime, reduce costly breakdowns, and maximize the productivity of your fleet.

When you need dependable mobile diesel repair, routine service, or emergency roadside assistance, Lone Star Diesel Solutions is the name you can trust to keep your operation running strong.

Why Choose Lone Star Diesel Solutions?
✔ Mobile Service for Maximum Convenience

We come to you—whether you're on a jobsite, at your shop, or stuck roadside. Our mobile units are fully equipped to handle diagnostics, repairs, and maintenance on the spot.

✔ Fast Response Times

We know downtime costs money. That’s why we prioritize rapid response and efficient service to get you back up and running as quickly as possible.

✔ Experienced & Certified Diesel Technicians

Our team consists of highly trained professionals with years of experience in commercial, agricultural, oilfield, and heavy-equipment repair. You can trust that every job is handled with expert care.

✔ Advanced Diagnostic Tools

We use state-of-the-art diagnostic equipment capable of servicing modern diesel engines, electronic systems, and emissions components with precision and accuracy.

✔ Comprehensive Repair Solutions

From engine and transmission work to hydraulic systems, electrical diagnostics, PM services, and more—we provide complete diesel repair and maintenance for all major makes and models.

✔ Tough, High-Quality Repairs Built for Harsh Conditions

South Texas work environments are demanding. Our repairs are made to last, ensuring your equipment can handle heat, dust, heavy loads, and rugged terrain.

✔ Honest Pricing & Transparent Communication

No surprises and no unnecessary repairs. We provide clear estimates, honest recommendations, and open communication throughout the service process.

✔ Dedicated to Your Productivity

Your operation depends on reliable equipment, and we take that seriously. Our goal is to keep your fleet performing at its best, helping you reduce downtime and boost efficiency.

Whether you're dealing with an urgent breakdown or scheduling preventative maintenance, Lone Star Diesel Solutions delivers the dependable, professional service you need — right where you need it.