Does Fuel Additive Have Any Effect?
3 Answers
Fuel additive, also known as fuel system cleaner, does have certain effects, but they are not very significant. This is not due to the product itself, but because there are too many counterfeit and inferior products on the market. The likelihood of consumers purchasing genuine and effective fuel additives is extremely slim. Therefore, buying fuel additives may not only be ineffective, but inferior products can even cause engine damage and more severe emission pollution issues. Below is extended information about fuel additives: 1. The primary function of fuel additives is to clean carbon deposits, which has always been their main selling point. Additionally, they help maintain the engine and fuel system. Some special-purpose fuel additives can also improve fuel's anti-knock properties (octane rating). 2. Furthermore, fuel additives can enhance power, promote combustion, provide anti-oxidation, anti-wear, cleaning, dispersion, demulsification, anti-corrosion, and lubrication effects.
As a seasoned car enthusiast who frequently tinkers with vehicles, I can tell you that fuel additives do have some effect, especially on engines with severe carbon buildup. If your car has driven tens of thousands of kilometers and feels less smooth during acceleration, adding some fuel additive can help clean the fuel injectors and valves, leading to more complete combustion. This might slightly improve fuel efficiency and make acceleration smoother. However, the effectiveness depends on the product—reputable brands are far more reliable than no-name products. Don’t expect it to be a cure-all—serious engine issues still require a visit to the repair shop. For long-term use, it can prevent carbon buildup, delay engine aging, and even reduce emissions a bit, serving as a small maintenance aid. I recommend adding one bottle every 5,000 kilometers, combined with regular maintenance—don’t slack off, and your car will last longer.
I'm someone who enjoys delving into the daily maintenance of cars. After adding fuel system cleaner, I felt the engine ran smoother. It mainly helps remove carbon deposits, such as cleaning small areas like the fuel injectors, leading to more complete combustion. Occasionally using it might make the car accelerate more smoothly, and fuel consumption could slightly decrease. However, the actual effects vary from person to person. It's not very effective for new cars, but more noticeable for older cars or those used for city commuting. Cost-wise, it's not very economical—a bottle costs tens of yuan, and using it a few times a year adds up to the cost of two oil changes. After trying it a few times, I think it's suitable for preventive use, especially in humid climates, where it can help slow down fuel system issues. Overall, it's worth a try but not necessary to use too frequently.
