Is all gasoline in China ethanol-blended?

[JoannaLynn]

No. Whether gasoline is ethanol-blended depends on the letter before the number. Ethanol-blended gasoline is marked with the letter E before the octane rating, such as E92 gasoline, which is ethanol-blended. Pure gasoline is directly labeled with numbers like 95 gasoline. Ethanol-blended gasoline: The gasoline commonly referred to is unleaded gasoline (containing trace amounts of lead), while ethanol-blended gasoline refers to the addition of a certain proportion of fuel ethanol (commonly known as alcohol) to regular unleaded gasoline. In China, this proportion is 10%. In simple terms, it means adding 10% biofuel ethanol to gasoline. Precautions for using ethanol-blended gasoline: For cars that have been driven more than 30,000 kilometers, if the fuel tank and fuel lines are not cleaned before using ethanol-blended gasoline for the first time, it may easily cause fuel line blockage and engine stalling. Even after cleaning, a small amount of impurities may still enter the fuel tank. After using the first tank of ethanol-blended gasoline, the car should be inspected and cleaned. However, for new cars with a mileage of less than 30,000 kilometers, the fuel tank and fuel lines do not need to be cleaned before adding ethanol-blended gasoline.