If you noticed a difference, then you went too far without it.
How many miles do you have? any other FI cleaners ever used?
There is no followup needed.
I do toss in a bottle of FI cleaner with every oil change or two when I remember. I rotate among the brands.
BG44k is one of the best.
Those who say it cannot be done, should not interrupt the person doing it.
Your automaker lied!
Is this a spelling/grammar forum or BITOG?