Why is 0W20 more expensive than 0W40?
2 Answers
0W-20 engine oil provides lubrication at low temperatures of minus thirty degrees Celsius and has lower viscosity. Low-viscosity oil requires higher costs to achieve the same performance, making it more expensive. Here is some relevant information about 0W20: 1. Introduction: 0W-20: The "W" stands for "winter," indicating it is suitable for winter use. The number before the "W" (0) represents the viscosity at low temperatures. The smaller the number, the better the fluidity at low temperatures and the stronger the cold resistance. The "20" indicates the viscosity at 100°C. The larger the number, the higher the viscosity and the better the high-temperature resistance. 2. Disadvantages: If the oil viscosity is too low, the oil cannot form a stable oil film on the surfaces of various engine components, which will increase engine wear. If the viscosity is too high, it will increase the resistance during engine operation, leading to reduced engine power and increased fuel consumption.
I've been pondering the price of engine oil, especially why 0W20 is more expensive than 0W40, mainly because its manufacturing process is more complex. Think about it, 0W20 has much lower viscosity at low temperatures, flowing as smoothly as water to quickly start the engine, which requires ultra-pure base oils and advanced additives to prevent wear. The production cost is high because the refining process is more precise, akin to crafting precision instruments. R&D costs are also factored in, as many new models like hybrids rely on it to improve fuel efficiency and reduce emissions. Increased demand drives up supply chain prices. I've tried both oils; 0W20 indeed saves fuel in city driving, offering long-term cost savings, though the initial price is higher. I recommend choosing reputable brands to ensure performance.
