What are the Recommendations for High Mileage Diesel Engines?

Diesel engines are highly durable and can go a long distance before they are said to be done, but when it gets to this stage, special attention must be paid to such engines. 

If you have a diesel truck, pickup, or car with many miles on the clock, you would wish to know that the engine would not get would not get worn out and would still run efficiently. High-mileage diesel is just as good, and calls go a lot more, but they require more care and attention.

In this article, you will learn what it means when talking about high mileage diesel engines, what main problems they encounter, and how to maintain them properly.

What is a High-Mileage Diesel Engine?

A diesel engine can be described as ‘high mileage’—over 100,000 to 200,000 miles if used a lot. As much as gasoline engines have more fuel efficiencies, diesel engines are more durable than gasoline engines – thus, they have better efficiency. 

However, over time, instead of accumulating some mileage, they may likely develop some wear-out notions. Therefore, the efficacy of their performance may be affected.

Here are some common issues that high-mileage diesel engines might face:

1. More Engine Wear: The engine’s inner parts, such as the piston and the valves, may deteriorate.
2. Lower Fuel Efficiency: As diesel engines age, they may use more fuel than when they were new.
3. Burning More Oil: Older engines may take more oil to maintain them longer than newly developed engines.
4. Exhaust Problems: Some parts of the exhaust system, like the diesel particulate filter (DPF), can get blocked and cause emission issues.

Tips for Taking Care of High-Mileage Diesel Engines

1. Always Select the Appropriate Engine Oil for your Car: High-mileage diesel engines call for appropriate engine oil. This engine requires high-quality diesel engine oil because the Diesel engine tends to run hotter than the petrol engine and works hard. Synthetic oil is also a perfect choice because it offers a wider protection to a given engine and it also assists in preventing wear.
2. Synthetic Oil: The best type of oil for such engines is the kind that will be suitable for an older car to maintain a supply of lubrication and smooth operations.
3. Change the Oil Regularly: In the high-mileage diesel engine, it is usually recommended that the oil be changed frequently, more accurately, from every 5,000 to 7,500 miles. Consistent and clean oil maintains the engine’s condition and does not cause any harm.
4. Worry About the MPG: Like with any vehicle, the fuel efficiency of a new-to-you diesel engine might have deteriorated over the years. Keep track of the Mile Per Gallon (MPG) of your car. If it starts going down, you may have a problem, such as clogged fuel injectors. Additional fuels also assist in removing deposits on fuel-related systems and improving efficiency.
5. Leaking and other Noises: Cars that have moved many miles usually develop leaks, such as the oil or the coolants leaking from the engine. You must always take the car through the garage to check for any leakage or unusual noise beneath the hood. If it produces a knocking or rattling sound, there is a probability that some of the parts located inside the engine require service.
6. Maintenance of Cooling System: A cooling system in diesel engines is vital. In this case, if all these do not work properly, the engine will likely overheat and develop severe problems. Please ensure the radiator, hoses and water pump are in perfect condition; replace it and the coolant. They help in keeping the engine cool.
7. Incorporate New Oil and Fuel Filters: Since the filters are used repeatedly, they should be replaced frequently concerning high mileage diesel engines. These filters can prevent dust and other particles from entering the engine and thus should be changed to increase the longevity of your engine and its efficiency.
8. Understand Diesel fuel additives that clean the fuel system and ensure your engine runs well. These can be particularly useful for high-mileage engines since carbon deposits in the engine are avoided. Some additives can also make your engine easier to start in cold climates.

Upgrades to Boost Performance

1. Upgrading the Turbocharger: Diesel engines use turbochargers to give them more power. If your turbo is old, upgrading it can boost your engine’s performance and make it run more smoothly.
2. Install a Cold Air Intake: A cold air intake helps bring more air into the engine, which makes it run better and more efficiently. This easy upgrade can make a noticeable difference in how your engine performs.
3. Tune Your Engine: Professional tuning or reprogramming the engine’s computer (called the ECU) can improve how your high-mileage diesel engine runs. This can help with fuel efficiency, power, and overall performance.
4. Upgrade the Exhaust System: A high-flow exhaust system can help your engine “breathe” better by allowing exhaust gasses to flow out more easily. This can improve performance and may reduce the risk of emissions problems.

Bottom Line

A diesel engine can last many times longer than the stated manufacturer’s miles as long as it is properly cared for. Everyone with a diesel pickup truck, car, or any heavy-duty diesel vehicle must change the oil, use the proper type of oil, and observe other signs that might be wrong. 

However, with proper maintenance, your diesel engine need not break down for decades, giving you the strength needed in your car today.

Fubex Lubricants presents only the best engine oils and lubricants ideal for high-mileage diesel engines. When driving a diesel engine, it is wise to put the best products in your engine and follow these steps to ensure your car has more life on the road.

FAQs

Q1: How often should I change the oil in a high-mileage diesel engine?

Ans: Many people say to change your diesel oil every 6 months, after 400 work hours, or between 5,000 and 7,000 miles. But the best time to change your diesel engine oil depends on how and where you drive.

Q2: What are the signs that a high-mileage diesel engine needs a turbocharger replacement?

Ans: If you see a lot of smoke from your diesel engine, it’s a good idea to visit a mechanic. Other signs of trouble include slow acceleration or when the engine doesn’t respond quickly. If you hear some loud noises when starting your engine, it could mean something’s wrong. Using more fuel than usual is also a warning sign. And if the check engine light comes on, don’t ignore it—it tells you your engine needs help.

Q3: Are fuel additives effective for maintaining high-mileage diesel engines?

Ans: Fuel treatments help keep your diesel engine clean by removing stuff that can block fuel injectors and other parts. This makes your engine last longer and helps you avoid expensive repairs.