NAVISTAR INTERNATIONAL SERVICE CENTER
IN THE UAE

FAQsFrequently Asked Questions

• How often should I change the oil for my Navistar vehicle?

  The oil change frequency depends on your driving habits, the conditions under which you drive, and the vehicle model. At Dynatrade Automotive, we recommend that Navistar truck owners change the oil and filter every 6000 to 8000 kilometers for traditional oils and 12000 to 16000 kilometers for synthetic oils. This Navistar service helps extend the vehicle’s life and run optimally without needing major repairs.

• Can I use a different-sized tyre for my Navistar?

  Vehicle manufacturers choose the tyre size after extensive research to help optimize a vehicle’s performance. Changes in the tyre specification that deviate from the prescribed standard will affect the stability, comfort, and overall vehicle performance. Even worse, it might have varying effects on the inner components of the vehicle, such as suspension, brakes, etc. Hence, we advise Navistar owners to stick to the manufacturer-prescribed tyre size.

• Will synthetic oils change the fuel efficiency of my vehicle?

  Generally, your driving habits and conditions influence a vehicle's fuel efficiency. Using synthetic oils improves fuel efficiency by providing better protection for engine components and reducing friction. Additionally, regular servicing at our Navistar service center helps maintain the fuel efficiency of your vehicle. By keeping your vehicle in top condition, it runs at its best and uses fuel efficiently.

• How important is it to maintain tyre pressure?

  Proper tyre pressure is essential for maximizing fuel efficiency and improving your vehicle's performance and handling, which translates to a safer, more comfortable ride. Underinflated tyres can increase rolling resistance and reduce fuel efficiency. Even worse, they are more prone to wear and increase the risk of blowouts or other accidents. On the other hand, overinflated tyres deliver a less comfortable ride, compromising handling and safety. Hence, you should regularly check and maintain your Navistar vehicle’s tyre pressure to ensure it runs smoothly.

• Can you use regular tap water to top up your truck's radiator?

  You can use tap water in your cooling system, but mix it with antifreeze. The antifreeze prevents the water from boiling when temperatures soar and freezing when temperatures plummet. It also protects the cooling system from corrosion. Always use the right mix of water and antifreeze (preferably a 50/50 mix), as using too much antifreeze can overheat the engine.

• Why does my Navistar truck overheat?

  Your Navistar truck can overheat if the coolant levels in the radiator are low or leaks exist in the radiator or hoses. Also, if the water pump that circulates coolant through the engine fails, the engine overheats. If debris or rust clogs the radiator, coolant flow is restricted, so the engine overheats. The same happens if the thermostat that regulates engine temperature fails. An overheating Navistar truck signifies trouble, so bring it for service.

• Is tyre rotation necessary?

  Tyre rotation involves moving the tyres and wheels of a vehicle from one position to another on the same vehicle. This practice enhances even tyre wear, which extends the tyre's lifespan and improves performance. Front tyres on a front-wheel drive vehicle and rear tyres on a rear-wheel drive vehicle tend to experience more wear. Rotating the tyres allows even wear distribution. Ideally, you should rotate the tyres every 5000 to 7000 miles or as per the manufacturer's recommendations.

• Why is the check engine light on?

  An illuminated check engine light (CEL) indicates a faulty vehicle engine or emissions system. When the check engine light is on, you should have your vehicle checked immediately to identify the problem and fix it. Common reasons for illuminated CEL are issues with the spark plugs, the oxygen sensor, the fuel system, and the catalytic converter. Ignoring the CEL or continuing to drive the vehicle when the light is on can cause further damage and may even be dangerous. When CEL turns on, drive to our nearest Navistar truck service center for diagnosis and repair.