I drive an AU Fairmont which runs on Petrol

I want to try these fuel additives (to clean the system)

Any recommendations?

the one i use is made by NULON i think.
i throw a bottle in with 30l of fuel every 10,000km or so and never had any dramas with it and seems to work pretty well.

<<cool, this is post number 1000, only took me five years.