Modern fuel is not what it used to be. Ultra-low sulfur diesel offers less lubrication than older formulations, while ethanol-blended gasoline leaves deposits that older engines never faced. The result? Injectors clog, fuel systems corrode and engines lose power over time. A fuel treatment addresses these issues by cleaning internal components, restoring lubricity and improving …

Your turbocharger plays a major role in how your diesel runs — airflow in, exhaust out, power made. Good maintenance habits can help your turbocharger deliver consistent boost over the long haul and may reduce the risk of expensive, avoidable problems. Discover some of the best diesel turbo care tips and learn how to perform …

If you own a vehicle with a diesel engine, your oil keeps everything running smoothly and ensures your vehicle starts reliably. Oil pressure determines how quickly and effectively it reaches the places it needs to go. High oil pressure can cause significant issues if overlooked when it arises from using the wrong oil viscosity, faulty …

Putting diesel exhaust fluid (DEF) in a diesel fuel tank can lead to significant repair costs if it is not handled correctly. If you identify it early and take the right precautions, you can correct the situation with little damage. If it goes untreated, or if you start the engine, you could end up with …

Diesel exhaust fluid (DEF) helps control emissions, allowing your engine to run cleanly and efficiently. If you’re seeing lost power, lower fuel economy or strange shutdowns, DEF system issues may be the cause. Diesel exhaust fluid issues trigger symptoms such as reduced fuel efficiency, power reduction or unexpected shutdowns. Ignoring these signals will lead to a …

Cold weather places added demands on diesel engines—from fuel flow challenges to thicker lubricants and harder starts. Taking a proactive, science‑based approach to winter preparation helps maintain reliability, protect critical components, and reduce the risk of downtime when temperatures drop. Below, we break down practical, proven cold‑weather diesel maintenance considerations—covering fuel, oil, cooling systems, batteries, …

Winter and cold weather can really bring you down. Not only does it get dark earlier and become too cold out to do much, but your vehicle’s fuel economy just gets worse and worse. There are a lot of reasons why your fuel economy suffers in the winter, by some estimates fuel economy goes down …

The robust L5P Duramax engine was developed by General Motors for the 2017 Chevrolet Silverado 2500HD and 3500HD trucks and GMC Sierra 2500HD and 3500HD trucks. The original 2017 Duramax motor has been upgraded and updated to further increase the engine’s reliability. Today, 445 horsepower and 910 lb-ft of torque make the L5P one of …

Diesel engines are built to take a beating, but they’re not invincible. Unlike their gasoline-powered counterparts, diesels operate at much higher compression ratios. That means more heat is generated right from the get-go. Plus, many diesel owners tow heavy loads or run long hauls, turning up the heat. Overheating in a diesel can lead to …