We’re proud to offer comprehensive diesel engine maintenance solutions.
Diesel engines are known for their durability, but that reliability depends on regular, expert care. We provide professional diesel engine maintenance services to help you get the most out of every mile. Whether you’re operating a single truck or managing an entire fleet, our team can handle routine service with precision and efficiency.

Our diesel engine maintenance solutions include oil and filter changes, fuel system service, glow plug inspections, emissions checks, and coolant analysis. We understand the complex systems that keep diesel engines running smoothly, and we tailor our maintenance plans to each truck’s age, usage, and workload. Every service is designed to reduce wear, improve fuel economy, and catch minor issues before they turn into significant problems.
We also monitor key performance indicators such as pressure, temperature, and injector timing to ensure everything remains in peak condition. Our team uses top-quality parts and diagnostic tools that meet or exceed manufacturer standards. That means less downtime, fewer surprise repairs, and better long-term performance for your diesel engine.
If your truck is running rough, losing power, or burning through fuel faster than usual, regular maintenance could make a big difference. We’ll walk you through what your engine needs and when, so you’re never caught off guard. And if repairs are required, we’ll explain your options clearly and help you make the best decision for your budget and timeline.
For trusted diesel engine maintenance in Charlotte, North Carolina, our team at State Line Diesel Performance LLC is ready to keep your truck running strong and prepared for the road ahead.
At State Line Diesel Performance LLC, we offer diesel engine maintenance services for those in Rock Hill, Columbia, Greenville, York, McConnells, Chester, Tega Cay, Clover, Fort Mill, and Indian Land, South Carolina; Charlotte, Greensboro, Raleigh, Kings Mountain, Gastonia, Waxhaw, Ballantyne, Weddington, and Monroe, North Carolina; as well as North Atlanta, Georgia and surrounding areas.