When is the best time to add fuel additives?

[AnnaDella]

It is recommended to start using fuel additives after the first maintenance of a new car. The following is a related introduction about the functions of fuel additives: Cleaning effect: The effect of this function is not immediate, and its value can only be reflected through long-term use. Engines that use fuel additives over a long period will have significantly less carbon buildup. Fuel saving: Additives also have a fuel-saving effect, although it is not very noticeable, with savings of only about 5%. The effect might be slightly more obvious for cars that frequently travel long distances. The quality of additives available on the market is hard to guarantee, and using inferior additives can be harmful rather than beneficial. It is best to purchase them from 4S stores, even though the price may be higher, as at least you can hold them accountable if any issues arise.