I got this question the other day. I assume David wants to keep his catalytic converter clear of carbon build-up.
This was my answer: David, use the Fuel Injector Cleaner, at a pretty strong ratio in your fuel tank, perhaps 1 bottle to 3-5 gallons. That should help a great deal.
But more than that, use another bottle, same product, with our IV Tube directly into the air intake thru a vacuum line. See the diagram on our homepage, or watch one of our Three Step Tune Up videos which are linked from our website www.motorpurr.com
For decades, we have been helping our customers keep their air intake and their exhause free of soot deposits and build up. This incudes the catalytic converter.
Or, feel free to call 409-787-1321. Thanks and good luck.
