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What grade of engine oil should be used for China 6 vehicles?

2 Answers

VanEllie

07/24/25 2:39am

China 6 vehicles use 5W30 semi-synthetic engine oil. The selection of engine oil should be based on the engine's requirements. It is unnecessary to use overly advanced engine oil in engines with lower requirements, nor should lower-grade engine oil be used in engines with higher requirements. The oil model recommended in the user manual should be selected. Vehicle owners should try to choose multi-grade oil as much as possible. Multi-grade oil, due to its cost-effectiveness, long service life, and high efficiency, provides better protection for the engine. Engine oil is divided into three categories: 1. Mineral oil: Mineral oil is a commonly used lubricant on the market. It is obtained by distilling useful substances during the petroleum refining process, and then processing and extracting the remaining base oil. 2. Semi-synthetic oil: Semi-synthetic oil is made from semi-synthetic base oil, which is a product purified from mineral oil through hydrocracking technology. It is a mixture of mineral oil and full synthetic oil in a ratio of 4:6. 3. Full synthetic oil: This is the highest grade of engine oil, derived from ethylene and propylene dispersed from natural gas or gas in crude oil, and then processed through complex chemical reactions such as polymerization and catalysis to form a lubricating fluid composed of large molecules.

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ODiana

08/10/25 10:13pm

I often drive a China 6 compliant car for my daily commute, and when choosing engine oil, I prioritize vehicle performance and fuel efficiency. The China 6 emission standards are very strict, requiring high-grade oils like API SP or ACEA C5, which are low-ash oils that protect the gasoline particulate filter (GPF) and prevent clogging that could lead to excessive emissions. I use 5W-30 full synthetic oil, which makes the engine run smoother, provides quicker acceleration response, and helps save on fuel costs. If lower-grade mineral oils are used carelessly, it may increase carbon buildup or damage the emission system, leading to higher repair costs later. I check the dipstick monthly and change the oil on time to avoid extended use that could affect engine longevity. The owner's manual provides detailed recommendations, which I always follow to ensure compatibility. For routine maintenance, I also pay attention to the source of the oil, purchasing only genuine products from authorized channels to minimize the risk of counterfeits. This way, I can drive with peace of mind while keeping costs economical. Properly maintaining a China 6 compliant car ensures it lasts for many more years.

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