Can Fuel Additive Be Poured In After Refueling?

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It is not advisable to add fuel additive after refueling. The correct sequence for adding fuel additive should be to pour the additive first, followed by refueling. This allows the fuel additive to mix uniformly with the fuel under the impact of fuel injection, thereby achieving optimal performance. Below is relevant information about fuel additives: Fuel additive, commonly known as fuel enhancer (also referred to as gasoline additive or fuel treatment), is a type of fuel additive designed to compensate for certain deficiencies in gasoline and impart new beneficial characteristics. It serves functions such as cleaning system carbon deposits, increasing octane rating, improving atomization, reducing wear, and protecting the engine.