Should Wuling Hongguang use 5W30 or 5W40 engine oil?
2 Answers
It should be flexibly distinguished according to the actual situation. If it is a brand-new car, it is recommended to use 5W30 engine oil; if it is an older car, it is recommended to use 5W40 engine oil. Below is a detailed introduction to engine oil grades: 1. The winter oil grades in the SAE lubricant viscosity classification are: 0W, 5W, 10W, 15W, 20W, 25W. 2. The symbol W stands for winter, and the smaller the number before W, the lower the low-temperature viscosity, the better the low-temperature fluidity, and the lower the applicable minimum temperature. 3. The summer oil grades in the SAE lubricant viscosity classification are: 20, 30, 40, 50. The larger the number, the higher the viscosity and the higher the applicable maximum temperature.
I've been driving my Wuling Hongguang for almost ten years, and friends often ask whether to choose 5W30 or 5W40 engine oil. For daily city commuting, I believe 5W30 is the most suitable—it easily protects the engine, flows quickly during startup, and makes winter ignition effortless. If summer temperatures aren’t too high, 5W30 is sufficient, offering lower fuel consumption and smoother engine operation. However, if you frequently haul goods on highways or live in hot southern regions, switch to 5W40—it’s thicker under high temperatures, reducing wear. Remember to check the oil color every 5,000 km or so; if it turns black or contains impurities, change it immediately—don’t wait for engine problems to arise. The Wuling Hongguang’s engine is quite robust—proper maintenance with the right oil can keep it running for a long time. I recommend checking the dipstick oil level regularly to avoid it being too low.
