Just stick to the inspection intervals and everything should work the way you want it to. However, this is not entirely true, and sometimes it is better to take some things into your own hands. We do not mean independent service, but the owner is the only person who influences when the car visits the workshop and what is done there. To extend the life of a modern diesel engine, you need to adhere to the basic principle: do not delay technical inspections.
When designing a car, a manufacturer knows when, what, and how to do to make the car work reliably. Unfortunately, this real knowledge is not available to everyone. Maintenance intervals have become another marketing tool, very ugly and increasingly used by car manufacturers. The producers went hand in hand by extending the periods between individual reviews.
Agree, once the oil had to be changed every 7-10 thousand. km, today the norm is almost 20 thousand, often – 25-30 thousand. km. Gearbox oil is less and less talked about, and the most common statement is: service life. Are cars really so durable that they don’t require an oil change every 10,000 km? So what has changed in the structure of the cylinders and crankshaft?
Change the oil every 10,000 km? This is complete nonsense, like a fairy tale that the oil does not need to be changed at all! Almost all diesel engines that are generally considered to be faulty have so-called oil-related defects. The best examples of this are early-generation Renault dCi engines that had bearings on the crankshaft. Not surprising, as the oil was used completely in accordance with the manufacturer’s instructions. When the owner took matters into his own hands and started changing the oil twice as often, he had no typical problems. The same applies to some BMW engines, where oil change intervals are determined by a computer, and mileage on one oil rarely goes below 20,000 km.
The main principle for improving the performance of diesel engines is to regularly change the oil at least once a year or every 10,000 km. The maximum mileage per oil can be determined at 15 thousand km, but when driving intensively, often using maximum performance or operating it at short distances, in the city, often turning the engine on and off, it is worth further reducing the oil mileage, for example, to 7-8 thousand . km. The fresher the oil, the less dirt gets into the corresponding engine components and the cleaner the exhaust. The latter can significantly shorten or extend the life of the particulate filter, depending on their cleanliness.
The oil must have the same viscosity and consistency as stated in the instruction manual. In this matter, manufacturers can and should be trusted. This is especially important in diesel engines equipped with a particulate filter, in which an oil with a low ash content “SAPS” should be used.
Engine oils in diesel vehicles should also be checked regularly. It is best to do this at least every 2-3 thousand km., Or only once a week, setting one solid day to get used to. Oil level control is very important in engines with particulate filters. If the oil level has exceeded the maximum (repeated failure of the filter regeneration process), it is important to replace the oil with a new one, as it will be heavily contaminated with fuel and will not provide proper engine lubrication.
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