What is the difference between 0w30 and 5w30?
4 Answers
0w30 and 5w30 differ in the following aspects: 1. The letter 'w' stands for winter. The number before 'w' represents the oil's low-temperature fluidity. A smaller number indicates better low-temperature fluidity of the oil. 2. The number after 'w' represents the oil's viscosity grade. A larger number indicates higher viscosity of the oil, meaning better protection for the engine under high-temperature conditions. 3. The choice of oil should be based on the engine's operating state under high temperatures. A higher number after 'w' indicates better viscosity of the engine oil, providing superior protection for the engine in high-temperature conditions.
The difference between 0W30 and 5W30 mainly lies in low-temperature fluidity. Having driven for over a decade, I've found that 0W30 starts up super fast in the severe cold of northern regions—the engine fires up swiftly in the morning, and the oil flows quickly for better protection. On the other hand, 5W30 is slightly thicker, making it more suitable for mild winters or everyday driving. In summer, both perform similarly, though fuel consumption might be a tad higher. Choose based on the weather, and don’t delay regular maintenance—it’s best to change the oil every six months to avoid heavy engine wear and regret later.
As an experienced person in oil selection, I believe that the lower viscosity of 0W30 at low temperatures means smoother cold starts, less engine wear, and approximately 2% better fuel efficiency. On the other hand, 5W30 is thicker and generally suitable for most temperature conditions. Their high-temperature performance is similar when driving at high speeds. However, in warmer regions, there's no real need to choose 0W30, especially since it costs about 30 yuan more. In the long run, protecting the engine is more important. Don't neglect regular oil level checks, as they can extend the engine's lifespan.
I've changed engine oil countless times. Briefly speaking, 0W30 has better fluidity in cold weather, suitable for temperatures as low as -35°C, with strong low-temperature protection and no delay in starting. 5W30 is slightly thicker and more suitable for higher temperatures. Both have the same high-temperature viscosity of 30. When driving fast, engine lubrication is the same, but in cold areas, the former is preferred. For daily driving, choose the latter for worry-free and cost-saving. Remember to maintain on time.
