Is There Any Impact of Adding Two Bottles of Fuel Additive at Once?

[Toby]

Adding two bottles of fuel additive at once has no impact. However, excessive use of fuel additives can lead to increased carbon deposits in the combustion chamber and worsen vehicle exhaust emissions. Below are some precautions regarding fuel additive usage: Product Selection: When adding fuel additives, it is essential to choose legitimate products. Due to the chaotic market for fuel additives, the quality cannot be guaranteed. If inferior fuel additives are used, they may not only fail to remove carbon deposits but could also negatively affect the vehicle's normal performance. It is advisable to purchase from authorized stores or 4S dealerships. New Vehicles Should Avoid Fuel Additives: If the vehicle is newly purchased, it is not recommended to use fuel additives. New vehicles generally have good operating conditions and rarely suffer from severe carbon deposits. Typically, fuel additives should only be considered after the vehicle has been driven for more than 20,000 kilometers.