Can Sinopec and PetroChina gasoline be mixed together?

[HarperLynn]

Sinopec and PetroChina gasoline should not be mixed together. If you want to switch brands, you should first drain the remaining gasoline from the fuel tank. Here are the reasons why they should not be mixed: 1. Different brands use different crude oil sources: Sinopec primarily imports crude oil from the Middle East, while PetroChina sources most of its crude oil from domestic oil fields located mainly in northern China, such as Daqing, Liaohe, and Karamay. 2. Different brands use different fuel additives and processing techniques: Although mixing Sinopec and PetroChina gasoline may not show immediate effects, prolonged mixing can damage engine performance, leading to carbon buildup and vibration. This can affect both the vehicle's power and ride comfort, and may even shorten the engine's lifespan.