What type of engine oil should be used for the Refine S3?
2 Answers
The recommended engine oil type for the Refine S3 is 10W-30-SJ. If you wish to change the oil during later maintenance, you can use Mobil Lubricant SJ-10W-30. The viscosity of engine oil changes with temperature, so special attention must be paid to its performance under both low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity—5W means it can withstand temperatures as low as -30°C. The smaller this number, the better the low-temperature fluidity, ensuring smoother cold starts for the vehicle. The latter number represents the kinematic viscosity of the oil at 100°C. A higher value indicates better ability to maintain viscosity under high temperatures, which can also be understood as superior lubrication performance in high-temperature conditions. The method for changing the engine oil in the Refine S3 is as follows: Wait for the engine temperature to cool down, allowing the oil to drain back into the oil pan. Use a wrench to loosen the oil drain plug and place an oil pan underneath to catch the old oil until it stops flowing. Start the engine and let it run for 30 seconds to allow oil in the main oil passages to drain out. Remove the oil filter using a specialized wrench. Apply oil to the seal of the new oil filter and tighten it clockwise by hand. Add new oil through the engine valve cover filler port—typically, fill about three-quarters of a standard oil container. Start the engine and let it run for 5 minutes, checking for leaks around the oil drain plug and oil filter. If leaks are found, perform necessary repairs. After stopping the engine, pull out the dipstick to ensure the oil level is within the standard range.
I've been driving the JAC Refine S3 for two years. This car recommends using 5W-30 synthetic oil, with an API rating of SM or above for safety. The viscosity adapts well to weather changes, whether it's high temperatures in summer or cold in winter, reducing the likelihood of engine issues. I often use Mobil or Shell brands for their good cost-performance ratio. The oil change frequency is every 5,000 kilometers or every six months. It's not difficult to change the oil at home: first, warm up the car for a few minutes, then unscrew the oil pan bolt, replace the oil and filter, and check that the oil level is in the middle of the dipstick. Remember not to mix different types of oil, as this can accelerate engine wear and lead to higher repair costs. New cars especially should use synthetic oil to protect the engine, saving money in the long run. Regularly check the oil quality; if it turns black or becomes thin, change it promptly.
