I've recently cleaned my intake valves after 25K miles. Cylinders 1, 3 and 4 were not bad but 2, 5 and 6 were pretty gunky. Does anyone have any experience with the BMS OCC installed for around 25K miles after cleaning the valves to see if it prevented gunky valves?
Does running a meth kit really work as far as cleaner valves is concerned?
Does running a meth kit really work as far as cleaner valves is concerned?