Can I Add Fuel Additive After Refueling?

1 Answers
VonRebecca
07/30/25 1:20am
You can add fuel additive after refueling, but the additive may not mix evenly with the fuel in this case. It is recommended to add the fuel additive to the car's fuel tank before refueling at the gas station, following the recommended ratio. This way, the added fuel additive will quickly dissolve thoroughly under the impact and vortex stirring of the fuel, ensuring a more uniform mixture of the additive and fuel. Precautions for using fuel additives: Gasoline-type fuel additives should be added to the gasoline tank, while diesel-type fuel additives should be added to the diesel tank. The two should not be confused. The most economical method is to use the additive continuously for the first three to five times, adding the detergent in the proportion specified in the instructions each time. After driving approximately 3,000 to 5,000 kilometers (depending on road conditions and fuel quality), repeat the cycle by adding the additive continuously for another three to five times. Hazards of overusing fuel additives: Excessive use of fuel additives may increase carbon deposits in the combustion chamber, and in severe cases, may lead to engine knocking or detonation. Fuel additives are auxiliary fuel additives, and excessive use can worsen vehicle exhaust emissions. Therefore, it is important to pay attention to the quantity and quality of the fuel additive when using it.
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