B12 chemtool vs valve gunk

B12 poured in tank vs valve gunk or carbon buildup on intake valves  and how to use fuel cleaners do you have a gdi,direct injection ivd,tsi,tbi, with seafoam spray or motor treatment, crc intake valve and turbo cleaner, also marvel mystery oil and stp, gumout in my other videos at nates interactive auto NIA so does fuel additives work find out like berrymans so they say quality fuel or additives  can be poured in the tank to help

• #autos_vehicles
• #b12_chemtool
• #berrymans
• #valve_gunk
• #crc_intake_valve_and_turbo_cleaner
• #seafoam
• #spray
• #motor_treatment
• #marvel_mystery_oil
• #stp
• #gumout
• #gdi
• #direct_injection
• #tsi
• #tbi
• #tdi
• #ivd
• #carbon_buildup
• #how_to
• #how_to_use_fuel_cleaners
• #does_fuel_additives_work
• #nia
• #can_fuel_treatment_help
• #can_fuel_additives_help
• #can_fuel_treatment_fix_problem