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    Maintaining Your Diesel Truck: Important Tips and Techniques

    When it comes to care and maintaining your diesel truck, there are several important tips and techniques you should be aware of to ensure you’re getting the most out of your vehicle. With proper care, your diesel truck will last longer, saving you money in the long run on maintenance costs and repairs. Be sure to follow these steps to keep your diesel truck running at its best.

    Fuel Quality

    Maintenance Tips For Diesel Engines

    Maintaining your diesel truck properly requires professional service.

    One of the most important aspects of maintaining your diesel truck is fuel quality. If you are experiencing any type of irregularity in your engine’s performance, it is best to have your fuel tested. Use a good-quality additive in all the tanks that you use to store fuel. Make sure there is no dirt or debris left in the tank before adding the additive and fill it with water afterward. Keep tanks free from moisture by installing a roof ventilator if possible.

    Cooling System

    A diesel engine produces extreme heat during operation, which can lead to the damaging of internal engine components if the cooling system is not working properly. The vehicle operator should make sure that their vehicle has a regular coolant change schedule. Regular inspections for leaks, contamination, or other problems with the cooling system should be performed as well.


    The transmission is the car part that takes mechanical power from the engine and puts it to use. It enables the car to move forward, just like a gearbox. A truck’s transmission can become dirty or broken as a result of poor maintenance, harsh driving conditions, or collisions with other vehicles. Since truck transmissions are powerful enough to engage themselves without your help in most cases, you need to be extra cautious when manually engaging them.

    Electrical System

    Check the connections at the battery cables to ensure they are tight, free of corrosion, and free of loose debris or leaves that could short-circuit the connection. Be sure to always disconnect the negative terminal first, followed by the positive terminal, before working on anything else with your truck’s electrical system! Check for any potential shorts in your engine wiring harnesses by tracing them from their beginning to their end points. Inspect for bare wires, chafed insulation, or damaged insulation around wire splices.

    Different Types of Maintenance Schedules

    As with most vehicles, diesel trucks have maintenance schedules. The frequency of these should be determined by the age of the truck as well as how often you drive it. Every vehicle has an odometer that records how many miles have been driven, so one way to determine maintenance schedules is to follow the recommendations of your owners manual, as well as your local mechanic on how often to replace your oil or other parts.

    Contact Allegiance Automotive

    Phone: 303-938-9454


    Address: 4939 Broadway Street #60
    Boulder, CO 80304

    Hours: M-F: 7:30 am – 5:00 pm
    Closed Saturday and Sunday