Buick-LaCrosse -2.4L New LaCrosse. . It's almost 2wkm Do you need to add gasoline additives?

I started to use fuel additives from 5000 km, generally 1000 km, I used a small bottle of 3M or Fu Ba fuel cleaner, and always added 92 # gasoline. Check with Jacky golo4, and all the indicators of the car are normal. 10 a small bottle of fuel additive is not expensive, and I hope it will help reduce carbon deposition in the car. Let 4S check the throttle and see the effect of 4 guarantees (major maintenance). I hope it works.