What kind of engine oil does the Changan CS55 use?
4 Answers
Changan CS55 uses 5w-40 synthetic engine oil, with an oil filling capacity of approximately 4L. Engine oil serves multiple functions such as lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, as well as shock absorption. It is often referred to as the "blood" of a car. Here is more information about automotive engine oil: 1. Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of lubricating oil, determining its fundamental properties. Additives compensate for and improve any deficiencies in the base oil's performance, while also imparting new characteristics, making them a crucial part of lubricating oil. 2. The use of engine oil additives or other engine maintenance products is strictly prohibited, as they may damage the engine under certain circumstances and affect warranty coverage.
I bought a Changan CS55 two years ago and have been maintaining it at the 4S shop. They recommended using 5W-30 full synthetic oil, which is suitable for most climates. Initially, I tried cheaper mineral oil, but the engine noise increased, and fuel consumption also went up. After switching back to synthetic oil, the car ran much smoother, especially during winter starts. The manual states that 5W-30 should match API SN or higher standards, and brands like Shell or Mobil are acceptable but not mandatory. Change the oil every 8,000 to 10,000 kilometers; if you drive mostly in city traffic with frequent stops, change it earlier to prevent carbon buildup. Never use the wrong viscosity, such as 5W-40, as long-term use can accelerate engine wear. Regularly check the oil dipstick color—if it turns black, it's time for a change. Protecting the engine properly saves you from costly major repairs.
Discussion on which engine oil to use for the Changan CS55, my experience is to stick to the user manual's recommendation: 5W-30 full synthetic oil is the safest, with an API grade of SN or above. Synthetic oil is more resistant to high temperatures and oxidation compared to mineral oil, protecting the engine and reducing wear. In areas with large temperature variations, the viscosity should be moderate; 5W-30 ensures quick starts in winter and maintains lubrication in summer. The choice of engine oil also affects fuel consumption, using the right one can save about 5%. The oil change interval is every 10,000 kilometers or one year, whichever comes first. Neglecting this may lead to oil leaks or insufficient power. It is recommended to go to a 4S shop for the first maintenance to ensure they use the correct specifications and not to skimp on cost. Keep track of the mileage to remind yourself not to exceed the limit, a small habit that can extend the car's lifespan.
When I first got my CS55, I didn't know much about engine oil either. The after-sales service recommended using 5W-30 synthetic oil. Using the wrong viscosity like 5W-40 or mineral oil can cause engine noise and higher fuel consumption. API SN grade provides strong baseline protection. The 5W rating ensures smooth starts in cold temperatures and maintains performance when hot. Change the oil every 10,000 km to prevent deposits. Choosing the wrong oil may corrode internal components, leading to expensive repairs. Following the manufacturer's guidance ensures safe driving and peace of mind.
