What kind of engine oil is best for Changan CS55?
4 Answers
The Changan CS55 series is equipped with a 1.5-liter turbocharged engine. It is recommended to use 5W40 mineral oil or 0W40 mineral oil. Here are the specific details: 1. The original vehicle uses SL-grade 5W-30 mineral oil, which is economical and reliable, fully capable of ensuring normal vehicle operation and engine lifespan. 2. Whether you choose engine oil yourself or use the free engine oil provided by the 4S shop, you should always confirm the engine type and model first. 3. If you are not satisfied with the free engine oil provided by the 4S shop, you can purchase branded engine oil yourself or buy original synthetic engine oil from the 4S shop. 4. As long as the new car undergoes its first maintenance at the 4S shop within the specified period, subsequent maintenance can still enjoy the three-guarantee service even if not performed at the 4S shop. However, if the owner fails to have the first maintenance performed at the designated 4S shop or manufacturer-authorized service station within the specified mileage after purchasing a new car, any issues arising with the vehicle, even during the warranty period, will require the owner to bear certain repair costs.
I've been driving my Changan CS55 for several years, always using 5W-30 full synthetic oil like Castrol or Mobil, and the results have been excellent. The manual recommends this viscosity because it performs well in both winter and summer, ensuring smooth cold starts and fuel efficiency. I change the oil every 8,000 kilometers myself, while also checking the filters to prevent impurities from accumulating and affecting the engine. Full synthetic oil is more expensive, but it lasts longer, protects pistons and lubricated components, and extends the vehicle's lifespan. Don't skimp by using mineral oil—it might save money initially, but it causes more wear over time and can lead to breakdowns. Since switching to this oil, my car idles more quietly, accelerates more responsively, and gives me peace of mind on long highway trips. When buying oil, I often compare prices online and choose reputable channels to ensure authenticity.
When I first got the CS55, I didn’t understand engine oil either, but later I figured it out. It’s best to use 5W-30 full synthetic—its viscosity suits most driving conditions. I’ve had good results with Shell; the engine runs quieter. New owners should regularly check the dipstick to ensure oil levels don’t drop too low. In extremely cold winters, opt for 0W-20, but always refer to the manual as the standard guide. Changing oil yourself isn’t hard—there are plenty of online tutorials, and tools cost just a few dozen bucks. Avoid unnecessary additives; the base oil is sufficient. Economically, full synthetic may cost more upfront, but it extends oil change intervals, saving time and proving cost-effective overall. On fuel economy—good oil can shave off a bit; the CS55’s combined consumption can stay around 8L/100km.
From a technical perspective, the Changan CS55 is suitable for SAE 5W-30 full synthetic oil with an API rating of SP or higher. Its low viscosity aids in cold starts, while the high viscosity provides high-temperature protection. During maintenance, I've found that using the wrong oil can lead to increased noise or higher fuel consumption. Always pair it with a quality filter and regularly check oil pressure. Opt for reliable brands like Total to avoid counterfeits. The engine design relies on this standard viscosity; misuse can accelerate wear.
