
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.

As a long-distance driver, I often encounter different gas stations, and mixing fuels has become routine. As long as the fuel grade matches, such as all being 95-octane gasoline, mixing them has never caused major issues. Sometimes when there's a fuel discount, I fill up half in the city and half in the suburbs, and the car still runs smoothly. However, I once tried mixing with cheaper gas from a small station and felt a slight drop in power, probably due to mismatched additives. So now, when I mix fuels, I only choose large chain stations—saving money while staying safe. An occasional mix is fine, but don't let the engine bear unknown risks, as repairs are too expensive. Developing good habits, like checking fuel quality reviews before refueling, can avoid most problems.

I don't drive much. When I first got my license, I was curious whether mixing fuels would harm the car, so I tried filling up at different stations and asked experienced drivers afterward. They said as long as the fuel grades match, mixing is fine, but avoid using low-quality fuel. For example, if it's all diesel or the same gasoline grade, the engine won't complain. However, if one is regular fuel and the other has special additives, long-term mixing might cause minor issues. Now, I only mix fuels at reputable stations for peace of mind. This experience taught me fuel knowledge—protecting a new car is crucial.

To save on fuel costs, I always look for cheap gas stations and mixing fuel from different stations is completely feasible. I fill up whenever the price is right, and as long as the octane rating is the same, there won't be any issues. Mixing fuels allows me to take advantage of lower prices, resulting in noticeable savings. Theoretically, different additives might have a slight impact, but in actual driving, it doesn't cause much trouble. However, for the long term, I prefer mixing fuel at familiar, reputable stations to avoid poor-quality fuel from small stations affecting engine longevity. This habit helps me control expenses while ensuring smooth driving, making it worth cultivating.

I'm interested in automotive technology, and mixing fuels under standard specifications is safe. Whether it's gasoline or diesel, they follow unified standards with minor additive differences and strong compatibility. However, when mixing biofuels or specially formulated oils, compatibility needs attention. Modern engine designs can handle mixed fueling without compromising environmental performance. Occasional mixing is fine, but for stable performance, I recommend sticking to clean fuel stations, which also helps reduce emissions.


