What is the suitable engine oil for Changan CS35?
3 Answers
Changan CS35 is suitable for fully synthetic engine oil. Changan CS35 is an SUV independently developed by Changan Automobile, featuring a sporty, sleek, and stylish design with a sense of technology. Its body dimensions are 4160mm in length, 1810mm in width, and 1670mm in height, with a wheelbase of 2560mm. The Changan CS35 is equipped with a new-generation BlueCore efficient H-series 1.6L engine, delivering a maximum output power of 125 horsepower and a maximum torque of 160 Nm. Standard features of the Changan CS35 include a reversing radar, electric windows, and an LCD display, while higher-end models come with additional features such as an electric sunroof, automatic air conditioning, and a multifunctional leather steering wheel.
I've been driving the Changan CS35 for 4 years and always use 5W-30 full synthetic oil. This domestic SUV's engine is independently developed by Changan, and veteran owners know it works best with medium-viscosity oil. I've tried Mobil, Shell, and Great Wall lubricants, and found that full synthetic oil indeed provides better engine protection than mineral oil, especially during cold starts in winter. The 5W represents low-temperature fluidity - it can still start at -25°C in Harbin, while the 30 indicates high-temperature protection, keeping the engine safe even when stuck in summer traffic with high coolant temperatures. After each oil change during maintenance, I clearly feel the throttle becomes more responsive, and fuel consumption drops by about 0.5L. The oil change interval is maintained at 7,500 km, which can extend to 8,000 km for frequent highway driving. Remember never to cheap out with 5W-40 oil - it's too viscous and will actually increase fuel consumption.
Having repaired hundreds of CS35s, my experience tells me there are two key points about engine oil: choose API grade SN or above, and stick to 5W-30 viscosity. For new cars, I recommend going straight for full synthetic oil—something like Total Quartz 9000 is a good choice. While naturally aspirated engines aren't picky about oil, those frequently used for short city trips should opt for types with better cleaning properties to reduce carbon buildup. I've seen several owners use the wrong 10W-40 viscosity, resulting in difficult cold starts and a hoarse engine sound. Always replace the oil filter with OEM parts during maintenance—they're compact but offer excellent filtration. Check oil levels every 5,000 km, and top up immediately if the dipstick reaches the lower limit. Northern owners should especially watch out for oil waxing in winter and keep oil change intervals within six months.
