What Causes Jerking Sensation After Adding Fuel Additive?

[GriffinAnn]

Jerking sensation after adding fuel additive is primarily caused by excessive carbon deposits in the combustion chamber. Below are detailed explanations about fuel additives: 1. Adding sequence: Add the fuel additive before refueling with gasoline. This allows the fuel additive to mix thoroughly and evenly under the impact of gasoline injection, achieving optimal usage effects. 2. Functions: Fuel additives, also known as fuel system cleaners, mainly serve to remove carbon deposits, maintain the engine and fuel system. Some specialized fuel additives can also improve fuel's anti-knock properties (octane rating). Composed of nano-molecules, cleaning activation factors, and over ten components including antioxidants, anti-corrosives, and demulsifiers, fuel additives are specifically designed to target harmful substances in fuel such as sulfur, gum deposits, and engine carbon buildup. They enhance power output, promote combustion, provide anti-oxidation, anti-wear, cleaning, dispersing, demulsifying, anti-corrosion, and lubrication effects.

[DiMariana]

I've been driving for over a decade and have tried several fuel additives. Sometimes after adding them, I notice the car jerks or hesitates during acceleration. This mainly happens because fuel additives loosen old deposits or sludge in the fuel tank and lines during cleaning. These contaminants can suddenly clog the fuel injectors or throttle body, disrupting fuel flow. When fuel supply is inconsistent, engine combustion becomes unstable, especially noticeable during idling or acceleration. My advice is to choose reliable brands, avoid overuse, and follow the instructions carefully. If jerking occurs, try driving at highway speeds or using a dedicated cleaner to flush the system. This helps the engine run smoothly and prevents long-term damage.

[AndresAnn]

From a mechanical perspective, let's discuss why fuel additives may cause engine hesitation: The cleaning agents in those additives can disrupt the air-fuel ratio in the combustion chamber when breaking down carbon deposits, leading to unstable spark plug ignition and making the vehicle feel jerky. For instance, improper dosage control may result in uneven distribution of the mixture entering the combustion chamber, affecting the injection system. I've seen numerous cases where owners adding excessive amounts caused sensor misjudgments and engine issues. Therefore, it's best to use reputable products, conduct test drives after adding, and promptly inspect fuel lines or spark plugs if problems arise.

[OAthena]

I just bought a car recently, and after adding fuel additive, I felt the engine shaking violently while driving, which made me quite worried. The jerking might be due to the additive concentration being too high, or the unstable quality of that batch of fuel, disrupting normal combustion. As a beginner, it's good to listen to others' advice—avoid using cheap off-brand products and try adding a small amount first to test the car's condition. If problems have already occurred after adding it, go to a professional repair shop immediately to have the fuel system cleaned—don't compromise safety.

[GageFitz]

For environmentally conscious individuals, hesitation in the fuel system after using fuel additives is often caused by poor compatibility between the chemical components of the additive and the engine. Improper use can increase emissions and even affect sensor operation. I choose certified green products to avoid hesitation while protecting the environment. When adding, be sure to carefully check the ingredient list to ensure compliance with standards.