Best intake valve cleaner MADE IN GERMANY!! Liqui moly

Best intake valve cleaner made in Germany. Liqui moly works with proof & IMPORTANT information you must know for intake valve cleaning on a gdi or direct injection in order to clean carbon buildup. We have tried many fuel additives fuel cleaners fuel system treatments such as bg gdi Lucas gdi seafoam motor treatment seafoam spray crc intake valve and turbo cleaner marvel mystery oil royal purple and so much more but valve gunk can be extremely hard to clean even adding a oil catch can is a must. #liquimoly