Can You Add Fuel First and Then Fuel Additive?
2 Answers
The correct sequence for adding fuel additive should be to add the fuel additive first, followed by refueling. This allows the fuel additive to mix thoroughly with the fuel under the impact of refueling, achieving the best performance. Below is relevant information about fuel additives: 1. The primary function of fuel additives is to clean carbon deposits, which has always been their main selling point, along with additional benefits such as maintaining the engine and fuel system. Certain specialized fuel additives can also improve the fuel's anti-knock properties (octane rating). 2. Fuel additives are mainly composed of more than ten ingredients, including nano-molecules, cleaning active factors, antioxidants, anti-corrosion agents, and demulsifiers. They are specifically designed to target harmful components in fuel such as sulfur, gum substances, and engine carbon deposits, thereby enhancing power, promoting combustion, providing anti-oxidation, anti-wear, cleaning, dispersing, demulsifying, anti-corrosion, and lubrication effects.
I've been driving for over a decade and often use fuel system cleaners to maintain my engine. Actually, you can add the fuel additive after refueling - that's perfectly fine. The key is ensuring thorough mixing between the additive and gasoline. Here's my method: Check the fuel level before refueling. If it's empty, I recommend first adding half a tank of gas, then pouring in the fuel cleaner, and finally topping up the tank. This utilizes the fuel flow during refueling for automatic mixing, which is much easier than manual stirring. Alternatively, some prefer adding the cleaner first followed by gasoline to leverage the pouring impact for dissolution, but remember to gently rock the car or drive briefly to let engine heat promote better integration. Never add additives when the engine is extremely hot as it may create safety hazards. Regular use of quality fuel system cleaners reduces carbon buildup and extends engine life - developing this maintenance habit is definitely cost-effective.
