Thanks for the info guys. I should have gave more details in my post, sorry. The bottle says
"Improves power and efficiency in 2 and 4 cycle engines. Removes deposits. Cleans away carbon & varnish from ring lands, pistons, combustion chambers, intake & exhaust manifolds, ports, valves, vapor separator tank, carburetors & injectors in 2 and 4 stroke engines. Can extend engine life by removing deposits that cause ring sticking and wear".
Shock treatment for old built up deposits...2 oz/gal
Older heavily deposited engines may require a second shock treatment.
It is recommended to change oil in 4 stroke engines after shock treatment.
Constant treatment to maintain protection from harmful deposit build up.... 1 oz/10 gal
Minimum shock treatment per engine... 3.3 to 1.7 liter engines should run 64 gal of treated gas
700cc to 1.6 liter should run 24 gal of treated gas
699cc and below should run 12 gal of treated gas
This product has doubled in price over the last 5 years or so and now cost about $16.00 per 12oz. It DOES NOT say safe for oxygen sensors or converters so it must be good!
Thanks again.