
Gas stations can add fuel additives you bring yourself. Correct usage method of fuel additives: Add the fuel additive to an almost empty fuel tank, then add gasoline. Typically, 60ml can be mixed with 30-60 liters of gasoline; do not overuse. The standard for overuse is adding no more than 5 bottles per tank of fuel. For car owners who habitually fill up two-thirds or half a tank, it is also recommended to add one bottle for better results. Adding fuel additives 6 times constitutes one cycle, and 12 times is an excellent usage cycle. It is recommended to add one bottle before each refueling to keep the vehicle in optimal condition. The functions of fuel additives: Fuel additives can remove carbon deposits, reduce fuel consumption, and restore engine power. Fuel additives, commonly known as a type of fuel additive, can to some extent clean the fuel injectors and fuel system, improve the atomization effect of the injectors, enhance the mixing and combustion of air and gasoline, and use antioxidant detergents to remove gum and moisture from the fuel system, thereby achieving the effect of cleaning carbon deposits.

Just helped my cousin with this a couple of days ago. Many gas stations do sell fuel additives at the counter, and staff usually offer to add it for you if you make a purchase. But don't count on getting assistance every time—during peak hours, they're often too busy. Personally, I usually turn off the engine after refueling, open the fuel tank cap, and pour the fuel additive in myself. The whole process takes less than a minute. Just remember to pour slowly and aim for the tank opening to avoid spills and wasted money. Important reminder: no open flames or smoking near the fuel pump, and always maintain a safe distance when pouring the additive.

It really depends on the service attitude of the specific gas station. I once bought fuel additive at a suburban gas station where a young guy in blue overalls helped me add it without hesitation, and he was very efficient. But later purchases all required self-service. Actually, adding it yourself is more reassuring since you can see whether it's being added properly. Here's a little tip: check your fuel tank capacity before adding. For small-displacement cars, don't pour the whole bottle of fuel additive at once—the instructions specify the proper ratio. My 1.6L car only needs half a bottle each time. After pouring, remember to tighten the cap and shake the car a few times to help with mixing.

Adding fuel system cleaner from those small bottles is a piece of cake. I always keep two bottles in my bag when refueling. During the refueling break when the engine's off, just unscrew the fuel cap and pour the whole bottle in – even simpler than topping up washer fluid. But three reminders: Don't wear nylon gloves in winter to avoid static electricity, the bottle's anti-slip grooves are there to prevent drops. I've seen people get stopped by attendants for tossing empty bottles near pumps – remember to recycle properly. Some newer models now have dedicated additive filler ports, so don't mistake the location.

Gas station attendants are always happy to help you add it—after all, it's good service that helps sell the product. Last week, there was a promotion at the gas station near my place, and a girl in a reflective vest directly opened my fuel tank cap and poured it in. But I recommend doing it yourself for better reliability: first, you can ensure the entire bottle of fuel additive is poured in without spills, and second, you can avoid being upsold on premium products. The type of fuel additive that to clean carbon deposits is best added before refueling, so the gasoline can flush it down and mix thoroughly. After adding it, don’t immediately floor the accelerator—driving 30–50 kilometers will yield better results.


