Is Sinopec 92 the same as PetroChina 92?

[McLucas]

Sinopec 92 and PetroChina 92 are not the same and cannot be mixed together. If you want to switch, you need to drain the remaining gasoline from the fuel tank. Differences between Sinopec 92 and PetroChina 92: Different brands of gasoline have different crude oil sources. Most of Sinopec's crude oil is imported, while PetroChina has many oil fields domestically, mainly concentrated in the northern regions. Therefore, PetroChina's crude oil is largely self-sufficient (domestic crude oil). Additionally, the fuel additives and processing technologies used by different brands vary. Imported crude oil uses superior additives, resulting in better fuel quality compared to domestic crude oil. Sinopec's gasoline is more fuel-efficient than PetroChina's. Fueling Precautions: Do not arbitrarily switch to a different octane rating. If you switch to a lower octane rating, it may cause premature combustion, leading to engine knocking. Incomplete combustion can also increase carbon deposits, clogging ducts and injectors, and result in reduced vehicle power and higher fuel consumption. If you fill up with the wrong fuel, you need to replace the fuel in the tank to avoid affecting engine performance.