Can Gasoline from Different Gas Stations Be Mixed?
2 Answers
Gasoline from different gas stations can be mixed as long as the octane ratings are the same, but it is important to refuel at reputable gas stations. Below are some relevant details: 1. Source of Fuel: There can indeed be slight differences in fuel quality between different gas stations due to varying sources. However, all refineries produce fuel according to national standards, so even if the octane values differ slightly, the variations are minimal. 2. Fuel Quality: In terms of fuel quality, Sinopec > PetroChina. Firstly, PetroChina has relatively more gas stations, primarily concentrated in northern China, and most of its oil comes from domestic oil fields. On the other hand, Sinopec is mainly located in southern China, where domestic oil fields are relatively scarce, and it primarily processes imported oil from the Middle East.
I've been driving a taxi for years and am quite familiar with fuel quality issues. In most cases, it's acceptable to mix fuels from different gas stations, as long as they meet national standards and have the same octane rating. For example, mixing 92-octane gasoline from different reputable brands usually won't affect your engine. However, pay attention to additive differences: some small stations or newly opened ones might use special detergent formulations, and excessive mixing could lead to incomplete combustion or minor carbon buildup – I've seen passengers' cars occasionally misfire. Unless absolutely necessary, avoid frequent fuel mixing. Developing a habit of rotating between a few trusted major-brand stations is more reliable and better for engine maintenance. For long-term driving, this habit can save you repair troubles and ensure stable driving performance.
