Can I switch from Sinopec to PetroChina?
4 Answers
As long as the octane rating is the same. You can switch from Sinopec to PetroChina gasoline, as long as it meets national standards. Here are the specific differences between PetroChina and Sinopec: 1. Raw materials: Although PetroChina and Sinopec use almost the same processes, the additives are different. Sinopec uses some of the best imported additives in the world. 2. Density: In terms of fuel density, PetroChina's gasoline density is generally around 0.72-0.73, while Sinopec's fuel density is around 0.75-0.77. The quality of both fuels is similar, but PetroChina's fuel density is slightly lower than Sinopec's. 3. Mileage: Since PetroChina's density is lower than Sinopec's, Sinopec's fuel tends to last longer and provide better power, and is generally slightly more expensive. However, since the brands are different, the crude oil, gasoline processing methods, processing procedures, and additive usage also differ. Frequent mixing may cause slight engine vibration, carbon deposits, and other discomfort symptoms.
As a long-haul truck driver who frequently travels, I find this question very practical. Both Sinopec and PetroChina are official gas stations, and their gasoline meets national standards, so switching between them is generally fine. On the road, I often encounter these two brands and choose based on location and price—for example, PetroChina is more common on highways, while Sinopec is frequently seen in urban areas. I've never had any issues with mixed fueling. However, note that gasoline additives vary slightly, and long-term mixed use may affect engine efficiency. It's recommended to stick to one brand for optimal performance. In winter when temperatures are low, I prefer Sinopec because its fuel stability is slightly better. In short, switching freely can save money, as long as you don't do it too frequently.
As a salesperson who frequently drives to visit clients, I refuel at the nearest station when the tank is almost empty, trying all brands. PetroChina and Sinopec gasoline actually have high compatibility, with national standards ensuring consistent basic quality—mixing them occasionally doesn't cause issues. The key is choosing stations with shorter queues or discounts, like Sinopec's Friday member discount for better deals. Normally, I don’t fuss over brands, and my engine runs fine. But for the first two years with a new car, I stick to Sinopec to avoid minor additive conflicts. Overall, mixing fuels is common practice; no need to worry about engine failure—it mostly depends on personal preference.
As a family car user who drives kids to school or for outings, fuel consumption is a minor concern, but safety comes first. The gasoline quality of Sinopec and PetroChina meets standards and is uniform, so mixing them is no problem. I usually use Sinopec because there are many stations nearby and they are clean. Occasionally, when there's no choice but to use PetroChina, it also works fine. The vehicle manual mentions that frequently switching brands may reduce engine lifespan, but in practice, it's not a big issue. In summer when temperatures are high, I prefer PetroChina as it evaporates slower. In daily use, don’t stress over brands; keeping the tank full is more reliable.
