Is Weichai's engine oil changed every 60,000 kilometers?
1 Answers
Weichai's engine oil is changed every 60,000 kilometers. The following are the classifications of engine oil: 1. Mineral oil: The base oil of mineral oil is a product refined from the residual bottom oil after the useful light substances (such as aviation oil, gasoline, etc.) are fractionated during the refining process of crude oil. It utilizes the inferior components of crude oil. Mineral oil is relatively inexpensive and suitable for vehicles with lower emission requirements, but it causes greater environmental pollution. The replacement cycle for mineral oil is every six months or 5,000 kilometers. 2. Semi-synthetic oil: Semi-synthetic oil is a product refined from mineral oil through hydrocracking technology, consisting of a 4:6 ratio of mineral oil and full synthetic oil. The purity of semi-synthetic oil is very close to that of full synthetic oil, but its cost is slightly higher than that of mineral oil; it is an ideal transitional product from mineral oil to synthetic oil. Semi-synthetic oil is changed every six months or 7,500 kilometers. 3. Full synthetic oil: Full synthetic oil is a high-grade product among engine oils. It is derived from ethylene and propylene dispersed from natural gas or crude oil gas, which are then polymerized and catalyzed through complex chemical reactions to form a lubricating fluid composed of large molecules. Full synthetic oil has superior quality, with much better thermal stability, oxidation resistance, and viscosity change resistance compared to mineral oil and semi-synthetic oil. Full synthetic oil is changed every six months or 10,000 kilometers.