What kind of engine oil is suitable for Changan CS55?
2 Answers
Changan CS55 uses 5W-40 synthetic engine oil, with an oil filling capacity of approximately 4L. The functions of engine oil for the engine: 1. Lubrication and wear reduction. 2. Auxiliary cooling. 3. Sealing and leakage prevention. 4. Rust and corrosion prevention. 5. Shock absorption and buffering. Gasoline engine oils are divided into two types: mineral oil and synthetic oil, with synthetic oil further categorized into semi-synthetic and full-synthetic oils. Engine oil consists of two parts: base oil and additives: 1. Base oil is the main component of lubricating oil, determining its basic properties. 2. Additives can compensate for and improve the shortcomings of base oil performance and impart certain new properties, making them an important part of lubricating oil.
As an owner who has driven the Changan CS55 for over two years, I've found that this car works best with 5W-30 full synthetic engine oil, as it protects the engine from wear during frequent city driving. I checked the official Changan manual, which recommends this viscosity grade—it doesn't thin out too much in summer heat and ensures quick starts in winter without dragging down performance. Don’t assume any oil will do; I tried semi-synthetic once and noticed slightly higher fuel consumption. I’ve also seen people use overly thick oil, resulting in terrifyingly loud engine noise. Now, I stick to the manufacturer-recommended brand, changing it every 7,500 km—the car runs smoothly, saves fuel, and handles occasional hill climbs or highway drives effortlessly. Bottom line: follow the manual—don’t skimp on small costs and risk damaging the engine. Safety first.
