What type of oil should be used for the Changan CS75?
3 Answers
Changan CS75 should use 5W30 oil. The functions of engine oil are: 1. To reduce friction and high temperatures; 2. To minimize gas leakage and prevent contamination from external pollutants; 3. To protect components from contact with water, air, and harmful acidic gases; 4. To cushion the pressure rise in the engine cylinder ports; 5. To clean dirt generated on the working surfaces of components. The functions of transmission oil are: 1. To maintain the cleanliness of the gear system; 2. To lubricate the transmission components. Taking the 2021 Changan CS75 as an example, it is a compact SUV with the following dimensions: length 4650mm, width 1850mm, height 1715mm, wheelbase 2700mm, fuel tank capacity 58 liters, and trunk capacity 520 liters.
I've been driving the Changan CS75 for over three years, and adding engine oil depends on the manual and practical experience. The manual recommends SAE 5W-30, which is quite suitable for most temperatures, especially for smooth cold starts in northern winters. I usually use fully synthetic oil, like big brands such as Mobil or Castrol, which better protect the engine and reduce wear. Synthetic oil has a longer oil change interval, about every six months or 10,000 kilometers—don't delay too long. Never skimp on costs by buying off-brand or the wrong viscosity; if the engine builds up too much carbon, repairs will cost several times more than the oil. Checking the oil level is simple—just pull out the dipstick and check the color; if it's black, it's time for a change. By the way, regularly changing the oil filter is also crucial—doing the whole set keeps the car running more smoothly.
As an enthusiast who frequently tinkers with cars, I've gained some insights into oil selection for the CS75. The standard recommendation is 5W-30, clearly stated in the manual. Viscosity is crucial—too high makes cold starts difficult and increases fuel consumption, while too low fails to protect the engine. I've tried several brands of semi-synthetic and full synthetic oils, finding synthetic oils more reliable with longer intervals between changes. In fluctuating temperatures, low-viscosity oil ensures quicker starts and reduces wear. Always check the oil grade—SN or SP types are more eco-friendly. Don't skimp on oil quality; cheap oils cause more carbon buildup, leading to louder engine noise over time. Check the oil condition every 8,000 km and replace the filter when changing the oil to keep the engine running smoothly. Safety first—stick to the recommended type.
