What is the best engine oil for CS55?
2 Answers
CS55 is equipped with a 1.5-liter turbocharged engine. It is recommended to use 5W40 full synthetic engine oil or 0W40 full synthetic engine oil. Engine oil classification: Currently, engine oils on the market are roughly divided into three types: mineral engine oil, semi-synthetic engine oil, and full synthetic engine oil. The quality and price of these three types of engine oils increase progressively. Comparatively, full synthetic engine oil has the best quality and the highest price, while mineral engine oil has the lowest price and the lowest quality. Semi-synthetic engine oil falls in between. Generally, entry-level vehicles or naturally aspirated engines are suitable for mineral engine oil, while high-end vehicles and turbocharged models are suitable for full synthetic engine oil. Engine oil grade: Engine oil grades consist of two parts: classification and viscosity specification. Engine oil grades usually indicate viscosity and quality. W stands for WINTER. The number before W represents the pour point temperature, simply put, the freezing point temperature. The number after W represents the kinematic viscosity of the engine oil at 100°C. A higher number indicates higher viscosity.
Having driven for over a decade, I find that SUVs like the CS55 are best suited for full synthetic oil, with a viscosity of 5W-30 being ideal. This viscosity provides both protection during cold starts and stability during high-temperature operation, preventing excessive engine wear. In terms of brands, I've personally tried Shell's synthetic oil, which offers stable performance and smooth driving. Avoid the temptation to use cheaper mineral oils, as they can easily clog the oil passages. Additionally, make sure to change the oil regularly, every 5,000 to 10,000 kilometers, and don't delay extending the mileage. During oil changes, check the oil level and the filter. Following this routine can extend the engine's lifespan by several years. Investing a bit more in high-quality oil saves both money and hassle compared to frequent repairs.