Is it necessary to add gasoline additive?

[PresleyMarie]

Whether it is necessary to add gasoline additive depends on the condition of the vehicle. Generally, new cars do not need it, but if the car has been used for a long time, adding it can improve engine performance. It can also be added when the fuel quality is not good, as it can enhance the car's power. Gasoline additive can improve combustion efficiency, reduce fuel consumption, and help decompose and remove deposits in the combustion chamber, preventing future buildup. A clean combustion chamber allows the engine to operate more smoothly, significantly reducing nitrogen oxide emissions and enabling the use of lower-octane fuel. Gasoline additive also has anti-rust and rust-removing effects. After adding it, it effectively cleans the fuel system and forms a protective film on the fuel system and engine cylinder surfaces, providing protection against corrosion and damage caused by low-quality gasoline. This improves engine starting performance, enhances power, and extends the engine's lifespan.

[VanLondyn]

Having worked in the automotive repair field for many years, I've seen a lot of discussions about fuel additives. Their main function is to clean the fuel system and remove carbon deposits, especially suitable for older cars or those frequently driven in congested urban areas where rust and carbon buildup are common. Using them can improve power and fuel efficiency. However, they're not a must-have; new car engines are well-designed and don't necessarily need them. Additives come in types like cleaners and octane boosters, and it's safer to choose products from reputable brands like Shell or Total. I recommend using them only when symptoms like unstable idling appear; normally, using high-quality gasoline is sufficient. Over-reliance can waste money and may even corrode components, so regular engine maintenance is a better way to prevent issues. In short, necessity depends on the vehicle's condition and personal habits—don't just follow the trend to use them.

[MaliaFitz]

As a seasoned driver with over a decade of experience, I've used gasoline additives a few times. After adding them, I noticed the car starts slightly faster, the throttle responds more sensitively, and there's a tiny reduction in fuel consumption. But that was when I added them during cold winter starts; during regular highway driving, there's no noticeable difference without additives. Honestly, additives aren't essential unless your car is older or shows clear signs of carbon buildup. A bottle costing a few dozen yuan isn't expensive, but the effects vary—I usually add them just once every six months to clean the system. For peace of mind, it's better to focus on using 92-octane or higher gasoline, reducing sudden braking and idling. Once, after using a low-quality additive, my engine developed some strange noises, sending me on a pointless trip to the repair shop. So, only use additives when necessary—don't overdo it.

[LeZachary]

From a cost-saving perspective, gasoline additives are not necessary for regular use. A bottle costing tens to hundreds of yuan, when added to the fuel tank, claims to clean the system and enhance performance, but the actual effects are limited. For new cars with intact fuel systems, adding them is just a waste of money. Older cars might see some benefits, but when calculating savings: a 0.5% fuel efficiency improvement would require driving thousands of kilometers just to break even. It's more economical to directly use higher-quality gasoline or adjust driving habits to reduce idling time and save fuel. There are many types of additives, and low-quality ones can even damage the engine. When budgeting, I often skip this expense to save money, only considering temporary use of cleaners if actual problems arise.

[StRonan]

It is recommended to use gasoline additives as a preventive measure during regular maintenance. They can clean carbon deposits from fuel injectors and intake manifolds, preventing engine issues, especially since urban short-distance driving tends to accumulate grime. I add it once a month, and my car maintains stable performance; without it, older cars may experience shaking or increased fuel consumption. However, it's not mandatory—choosing reliable brands like Chevron products ensures safety and effectiveness. As supplementary maintenance, it offers low-cost protection against long-term issues, saving much more compared to major repairs. Additionally, maintain good driving habits, such as avoiding overloading and excessive idling.

[VanLaila]

I remain neutral when considering fuel additives, viewing them as non-essential but situationally beneficial. For new cars with advanced systems, the difference with or without additives is minimal; older vehicles with more carbon deposits may benefit from periodic cleaning to improve performance. Additives come in cleaning and octane-boosting types—the latter can temporarily increase power, but higher-octane fuel usually suffices. I've used them a few times with mixed experiences, varying by brand. Overall, the decision to use additives should be based on the vehicle's age and driving conditions, avoiding blind adherence to advertising over practical maintenance.