Optima 2017 GDI Intake Valve Cleaner | Kia Optima Forums
2011 Kia Optima 2.0TGDI, check engine light went on, code is P04020, not O2 sensor. Mechanic says catalytic converter is clogged. I wanted to try liqui moly catalytic system cleaner but all
Intake valve cleaner | Kia Forum
HOW TO USE CRC GDI IVD® INTAKE VALVE & TURBO CLEANER | CRC Industries
Berryman Intake Valve and Combustion Chamber Cleaner, 16-Ounce Aerosol : Amazon.in: Car & Motorbike