Diesel engines typically require oil changes every 5,000 to 7,500 miles, depending on your driving conditions, towing habits, and the type of oil used. If your truck is used for heavy hauling or off-road work, more frequent changes may be necessary to protect engine components.

Coolant breaks down over time and can become contaminated, reducing its ability to protect your engine from overheating and corrosion. A regular flush removes buildup and helps maintain proper operating temperatures, especially critical in high-performance diesel engines.

You should replace diesel fuel filters every 10,000 to 15,000 miles or as recommended by your manufacturer. Symptoms like hard starting, sluggish acceleration, or decreased fuel efficiency may also signal it's time for a replacement.

If your diesel engine struggles to start in cold weather, takes longer to crank, or shows excessive smoke on startup, it could indicate worn-out glow plugs or an issue with the glow plug controller. These components are essential for cold starts and fuel combustion efficiency.

Absolutely. Even new diesel trucks benefit from regular maintenance. Staying ahead of wear and tear helps prevent costly breakdowns, ensures warranty compliance, and extends the lifespan of your engine and supporting systems.