What is the difference between Shell HX5 Plus and HX6?
2 Answers
Shell HX5 Plus is a mineral oil, while HX6 is a synthetic oil. The main differences between Shell HX5 Plus and HX6 are as follows: 1. Chlorine content: HX6 has lower chlorine content than HX5, meeting environmental requirements and making waste oil disposal safer. 2. Stability: Compared to HX5, HX6 has a 24% longer lifespan, 34% better shear stability, and twice the sludge removal efficiency of HX5. 3. Temperature resistance: HX6 outperforms HX5 in both high and low-temperature performance. HX6 can withstand 220°C and -39°C, higher than HX5's 210°C and -33°C.
I've used Shell HX5 Plus and HX6 many times, and I think the biggest differences between them lie in oil quality and applicable scenarios. HX5 Plus is mineral-based, affordable and cost-effective. After an oil change, the engine runs basically smoothly, suitable for ordinary city commuting or economical older cars. There won't be major issues when driving, but over time, there might be some carbon buildup. HX6 is semi-synthetic, costing a few dozen yuan more, but with significantly improved performance. It provides better engine protection on highways and slightly lower fuel consumption. My experience is: if your car is newer, you frequently take long trips, or you pursue a bit of driving pleasure, HX6 is worth the extra money; if you only drive in the city and have a tight budget, HX5 Plus is sufficient. Additionally, weather changes affect them differently—HX6 starts more easily in winter and doesn't thicken in summer, with overall better durability. In summary, the choice depends on your car's condition and driving habits.
