What is the Difference Between Imported and Domestic Engine Oil?
2 Answers
Here are the differences between imported and domestic engine oil as follows: 1. Raw Materials: The raw material is petroleum. Domestic petroleum resources are inadequate, and refining capabilities are also lacking. Fortunately, imports are possible. 2. Formulation: Domestic talent is insufficient, and no one is willing to invest heavily in research. Supporting industries are also lacking (relevant additive manufacturers), with laboratories often costing nine-figure sums. Fortunately, outdated formulations from major foreign oil giants can be copied or purchased. 3. Production: The production process is the only aspect that is both commendable and lamentable. Many enterprises in Beijing, Shandong, Northeast China, and Jiangsu can meet the standards. The equipment required for lubricant production is simpler than preparing a dinner. Yet, many take pride in becoming OEMs for foreign giants. From both a petrochemical and automotive perspective, lubricants are a very minor component, but the investment required is enormous. Hence, the visible brands are all oil giants.
The biggest difference between imported and domestic motor oils lies in the base oil and additive levels. Imported oils typically use premium full-synthetic base oils and imported additive formulations, making them better suited for harsh conditions like extreme cold or high-performance vehicles. They offer more comprehensive engine protection, faster cold starts, and extended oil change intervals. Based on my long-distance testing, imported brands like Mobil or Shell demonstrate stronger cleaning capabilities, reducing carbon deposits and slightly improving fuel efficiency. Domestic oils have made significant progress—brands like Kunlun and Great Wall primarily use mineral or semi-synthetic oils at affordable prices, which are perfectly adequate for daily commuter cars. The key is to follow your vehicle's manual and avoid mixing oils arbitrarily. Environmentally, imported oils often carry low-carbon certifications, offering long-term protection for the planet.
