Is it necessary to add fuel cleaner?

[LeLeo]

If the car experiences shaking, unstable idling, weak acceleration, increased fuel consumption, or exhaust pollution, it is necessary to add fuel cleaner. If the fuel quality is usually high, there is little engine carbon buildup, and no abnormalities, then it is not necessary to add fuel cleaner. Relevant information about fuel additives is as follows: 1. Classification: Fuel additives are divided into gasoline additives and diesel additives based on the target of use. In terms of function, they are generally categorized into three types: cleaning type, maintenance type, and power enhancement type. 2. Function: Due to poor atomization and incomplete combustion, a large amount of black smoke is formed. Fuel additives can effectively reduce the activation energy of combustion, improve atomization efficiency, and allow the non-combustible colloids in the fuel to fully burn, thereby eliminating black smoke and reducing emissions.

[Kennedy]

After driving for over a decade, I genuinely believe fuel system cleaners are necessary under certain circumstances. Older vehicle models are prone to carbon buildup issues, and adding a quality cleaner can effectively clean fuel injectors and intake systems, improving throttle response and fuel efficiency. I personally use branded products every few months and have noticed reduced engine noise and smoother long-distance driving. However, modern vehicles with efficient engines generally don't require them – it's just a waste of money. My advice: only consider using cleaners if you observe sudden fuel consumption spikes or sluggish acceleration; otherwise, don't bother. Most importantly, never opt for cheap, low-quality products as they may damage your engine.

[SophiaRose]

As a young car enthusiast who loves tinkering with vehicles, I frequently test fuel additives. Fuel system cleaners are quite necessary, especially for cars that often drive short distances in urban areas, as they can prevent carbon buildup and improve idle stability and acceleration response. After adding it to my own hot hatch, the throttle response became more sensitive, and the exhaust fumes smelled a bit less. However, I don't add it with every refuel—only once during maintenance, and I choose products with good reputations. If you drive infrequently or have a new car, you might not need it; but for speed lovers like me, using it can extend component lifespan and reduce trips to the repair shop.

[McVera]

I drive to save money, and fuel system cleaners aren't a daily necessity but can offer peace of mind. If the engine warning light comes on or fuel consumption noticeably increases, adding it might help clean carbon deposits and prevent major repair costs. I only use it when problems arise, and the results are decent—power returns smoothly. However, for new cars or those driven infrequently, it's unnecessary to spend extra. Just choose a reliable brand and don't fall for flashy marketing.