Maintenance-free, long oil change cycle is a selling point in the commercial vehicle industry in recent years. It is intended to be a means of reducing costs and increasing efficiency for contemporary logistics through technological innovation. In the moment, we all have the same feelings, from nine In the chronological calculation of logistics timeliness, the transition from hourly to hourly calculation of logistics timeliness. Long oil change technology is bound to be a trend in the future, but long oil change is really to the factory calibrated 50,000 kilometers , 80,000 km and then change the oil?
● How to achieve long oil change technology?
In the past two years, long oil change technology has been the focus of vehicle companies. Especially for long-distance transportation with timeliness, the importance of timeliness is self-evident. Based on this, the heavy truck industry first embarked on a long oil change. The upgrade of technology has introduced a long oil-changing technology engine, a long oil-changing wheel end and a long-maintenance battery. The heavy-duty truck and the light-duty truck are the common chain cooperative relationship, and the light-duty engine long oil-changing technology has also been updated with the times. .
So, how is the engine long oil change technology achieved? In addition to the engine's own technical update, engine oil filter, oil is actually a complex triangular relationship, need to cooperate with each other to achieve longer oil change mileage.
In terms of engines, from the launch of most of the OEMs at this stage, in addition to the engine itself, there are also very high requirements for oil. Because of the long-term high-strength, high-load, high-temperature conditions, the oil is lubricated. The cooling and cleaning functions will be greatly attenuated, which will inevitably have a bad impact on the engine. Therefore, the engine needs to achieve a longer oil change interval, and the performance of the oil is an important indicator.
● Long-lasting engine oil requires higher performance
Driven by the long oil change technology upgrade of domestic heavy trucks, the demand for long oil change technology for light commercial vehicles is becoming more and more urgent. However, combined with the current situation of domestic urban logistics, the engine long oil change application technology upgrade has to face Low operating speed, frequent start and stop, diversified short-range conditions, time-to-face oil change and other technical difficulties.
Under these external harsh conditions, it will lead to oil sludge, serious oxidation, increased wear and tear, power attenuation, etc. It is necessary to achieve long oil change technology. The oil first needs to solve the anti-oxidation, wear control and various complicated refining techniques.
However, all synthetic long-lasting engine oils need to be added with different additives to improve the low-temperature fluidity of the oil, carbon deposition control, wear, corrosion control, oxidation control, heat stability, soot control and fuel economy. Performance.
At this stage, in order to meet the national five, national six emission standards, most domestic commercial vehicles use the SCR technology route plus post-processing technical route to meet the national five emission standards. In order to meet the lubrication performance of diesel engines, it is necessary to add a large amount of oil to the engine. The metal additive will produce ash on the cylinder wall after complete combustion with the fuel. High gray scale oil will inevitably affect the aftertreatment system.
Therefore, in order to meet the engine to achieve a longer oil change cycle and exhaust emission standards. At present, many manufacturers of lubricants such as Shell, Mobil, etc. have introduced long-lasting engine oil with low gray content, but the price is much more expensive than ordinary engine oil. .
● Long maintenance machine filter 50000 km for one time
In the cloud DEV (Dewei) series of 50,000 km oil cycle engine, in addition to the use of special long-term engine oil, the engine filter is also selected by MANN+HUMMEL's long-lasting machine filter, after 50,000 km to replace.
I believe that most card friends know that the most common problem with machine filtration is the leakage of the seal. This is the primary problem for long-lasting filter cartridges. The second is the filter media, which needs to meet both long-term filtration performance and circulation performance. Obviously, the price of such a filter is definitely not comparable to the conventional filter price.
In addition, the so-called long oil change does not mean that it is 50,000 kilometers (according to the actual factory calibration) before changing the oil, and occasionally it is necessary to carry out daily oil quantity inspection. If it is found that the oil quantity is insufficient, it needs to be added according to the actual situation.
In fact, a brief summary, the engine needs to reach the 50,000-kilometer, 80,000-kilometer long oil change period advertised by the manufacturer. In addition to the engine, there are very high requirements for oil and filter elements. According to our previous understanding The price of fully synthetic motor oil that can meet the long oil change technology is 3-5 times higher than that of ordinary synthetic motor oil. However, it is certain that the engine with long oil change technology is bound to save time and cost. Certain advantage.