What is the grade of CJ-4 diesel engine oil?
2 Answers
Classification of diesel engine oil grades: The letter C represents diesel engine oil. From CA, CB, CC, CD, CE, CF, CF-4, CG-4, CH-4, CI-4, to CJ-4, the further the letter is in the alphabet, the higher the quality grade of the oil. Below is some related information about diesel engines: 1. Concept: A diesel engine is an engine that burns diesel to release energy. The advantages of diesel engines are high power and good economic performance. The working process of a diesel engine shares many similarities with that of a gasoline engine, with each working cycle also going through the four strokes of intake, compression, power, and exhaust. 2. Development prospects: Heavy, noisy, and emitting black smoke, diesel engines have left many people with a poor first impression. However, after years of research and the application of new technologies, the state of modern diesel engines is incomparable to the past. Modern diesel engines generally use technologies such as electronic control injection, common rail, and turbocharged intercooling, achieving significant breakthroughs in weight, noise, and smoke levels, reaching the standards of gasoline engines.
CJ-4 is indeed the high standard in diesel engine oils! It's an API (American Petroleum Institute) classification code specifically designed for advanced diesel engines manufactured after 2007. These vehicles either come equipped with urea injection systems or particulate filters. The remarkable feature of CJ-4 lies in its ultra-low ash content, which effectively prevents clogging in the exhaust after-treatment systems. I always pay special attention to this specification when choosing oil, especially since long-haul truck drivers often emphasize that using the wrong oil can instantly ruin the particulate filter. It also excels in wear resistance and high-temperature stability, making engine noise noticeably smoother when climbing hills during summer.
