Bro, seriously how many bottle do I need to FULLY clean up the carbon in combustion chamber for car mileage over 15xxxx km? Coz I dont think 1 bottle is enough.
I know this is a MLOC forum but since I am driving an Airtrek Turbo, the heart is similar to E7-GTA. Anyway, hope I can get some advice here as I don't get much reply from the Airtreker forum. Here goes: