Quote:
Originally Posted by Our03z4
Just fyi my valves in my coupe still look like new with no carbon build up. I don't use any cleaner and I'm sitting at 102k miles. I do run top tier 93 in it. I use to use cleaner in other cars but I'm just not sure it's really needed.
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That's one of the reason why I got lazy with cleaners on all of my cars. But I still use it every once in a while to clean the entire fueling system.