Diesel Myths & Diesel Car Care in Kenya

Common Diesel Myths Debunked

• Myth 1: Diesel Engines are Noisy and Dirty.

Modern diesel engines have come a long way, with significantly reduced noise levels and cleaner emissions compared to older models. Advances in technology like common-rail fuel injection, turbocharging, and diesel particulate filters (DPFs) have minimized noise and harmful pollutants.

• Myth 2: Diesel Cars are More Expensive to Maintain.

While some specific maintenance tasks may cost slightly more for diesel engines, the overall cost of ownership can be balanced by their superior fuel efficiency on longer journeys. Routine maintenance schedules are crucial for both petrol and diesel vehicles. With proper care, diesel engines can provide reliable performance for many years.

• Myth 3: Diesel Engines Are Not Suitable for Short Trips.

Modern diesel engines are well-suited for both short and long trips. However, it’s true that short trips can prevent the engine from reaching its optimal operating temperature, which can lead to issues such as particulate filter clogging. To mitigate this, it’s important to occasionally take your diesel vehicle on longer drives to allow the engine to fully warm up and burn off any accumulated deposits.

• Myth 4: Diesel Engines Are Slow and Lack Performance.

Diesel engines are known for their high torque, which provides excellent low-end power and acceleration. This makes them particularly suitable for towing and carrying heavy loads. Modern diesel vehicles also feature advanced technologies that enhance performance, making them comparable to petrol engines in terms of speed and responsiveness.

• Myth 5: All Diesel Fuel (Automative Gas Oil – AGO) is the Same.

There are different grades of diesel fuel available, with varying sulphur content. Opting for low-sulphur diesel fuel protects your engine from harmful deposits and ensures optimal performance. The diesel sold in the Kenyan market is petroleum based; it is product of crude oil refining. The maximum allowable sulphur content in diesel by the Kenya Bureau of Standards is 0.05%. The other types of diesel oil are synthetic diesel and bio diesel.

• Myth 6: You Can Use Biodiesel in Any Diesel Car.

While biodiesel is a promising alternative fuel option, it’s crucial to check your car’s manual and consult a qualified mechanic.  Not all diesel engines are compatible with biodiesel blends, and using an incompatible blend can damage the engine.

• Myth 7: All Diesel Cars are Made for Off-Roading.

While some diesel vehicles are specifically designed for off-road use, many modern diesel cars are ideal for everyday driving on paved roads. These cars offer excellent fuel efficiency and impressive torque for highway cruising.

• Myth 8: Diesel Fuel Can Damage Petrol Engines.

Absolutely! Putting diesel fuel in a petrol engine will cause serious engine damage. The two fuels have different properties, and diesel won’t combust properly in a petrol engine, leading to lubrication problems, engine stalling, and potentially costly repairs. DO NOT put diesel fuel in a petrol car.

Essential Diesel Car Care Tips

1. Regular Servicing: Maintain a consistent servicing schedule based on your car’s manufacturer recommendations. This includes oil changes, filter replacements, and general inspections to identify any potential issues early on.
2. Regular Oil Changes: Diesel engines require clean oil to function properly. Regular oil changes are crucial to remove contaminants and maintain optimal lubrication. In Kenya, where driving conditions can be dusty and challenging, it’s recommended to change the oil every 5,000 to 7,000 kilometers or as specified by the manufacturer.
3. Air Filter Replacement: The air filter prevents dust and debris from entering the engine. In Kenya’s dusty environment, it’s essential to check and replace the air filter more frequently. A clogged air filter can reduce engine performance and fuel efficiency.
4. Fuel Quality and Choice: Use high-quality, low-sulphur diesel fuel from reputable providers. Avoid topping up with small amounts from unknown sources to prevent contamination, as fuel quality can vary in Kenya.
5. Fuel System Cleaning: Diesel engines are sensitive to fuel quality. Consider periodic fuel system cleaning with approved additives to remove deposits and ensure optimal fuel flow and prevent injector clogging.
6. Glow Plugs and Battery Maintenance: In colder climates, ensure your glow plugs are functioning properly for efficient cold starts. Keep your battery in good condition as diesel engines require a strong battery to start.
7. DPF Maintenance: Diesel particulate filters require periodic regeneration to remove trapped soot particles. Modern DPFs rely on automatic regeneration during highway driving. In case of frequent short trips, manual regeneration may be necessary as per the manufacturer’s instructions. Neglecting DPF maintenance can lead to expensive repairs.
8. Turbocharger Care: Allow your engine to cool down for a few minutes after driving before shutting it off, especially after hard acceleration. This allows the turbocharger to cool down and prevents oil from coking within the system.
9. Cooling System Maintenance: Diesel engines generate more heat than petrol engines, making the cooling system crucial. Regularly check the coolant level and inspect the radiator and hoses for leaks or damage. In Kenya’s hot climate, it’s important to use the right coolant mix to prevent overheating.
10. Drive Belt and Timing Belt Inspection: The drive belt and timing belt are critical for the engine’s operation. Regularly inspect these belts for wear and replace them according to the manufacturer’s recommendations. A broken belt can cause severe engine damage.
11. Driving Style: Maintain a smooth and consistent driving style. Avoid harsh acceleration and abrupt braking to maximize fuel efficiency and minimize strain on the engine.
12. Drive Your Car Regularly: Regularly driving your diesel car allows the engine to reach its optimal operating temperature, which helps burn off accumulated soot and maintain the DPF’s health. If you don’t use your car frequently, consider taking it for a longer drive every few weeks to ensure proper engine operation and DPF regeneration.

Addressing Common Issues with Diesel Cars in Kenya

• Black Smoke Emission: This could indicate incomplete combustion due to clogged injectors, faulty EGR valve, or improper fuel quality. Consult a mechanic for diagnosis and repair.
• Reduced Engine Power: This can stem from various factors, including clogged air filters, faulty fuel pump, or turbocharger issues. Consult a mechanic for proper diagnosis and repair.
• Engine Knocking or Rattling: This could indicate injector failure, worn-out engine components, or low-quality fuel. Seek professional diagnosis and repair immediately to prevent further damage.

   

By following the helpful diesel car care tips outlined in this guide, you can make sure that your diesel vehicle stays in great condition for both short and long trips, delivering top performance and longevity. Regular maintenance, paying attention to fuel quality, and being proactive with inspections are key to keeping diesel engines running smoothly.

Whether you’re a daily commuter or an off-road enthusiast, embracing these diesel car care practices will help you get the most out of your vehicle while also contributing to a cleaner and more efficient automotive environment in Kenya. With proper maintenance, diesel vehicles can provide reliable performance and cost savings over time.