I guess it is time for injector cleaner afficiandos to get into this. If, for example, (here in the states) you burn Chevron gasoline, you are getting a bit of injector cleaner in every tankful. Techron. Since I run turbos, I burn the Chevron Supreme most of the time. Then, every spring, as I prepare for my first long trip ( minimally needing two tankfuls of gas), I put a bottle of Techron into the tank just as I fill up for the trip. This is because my car sits for 7 months every winter. Even then, I do use Stabil and I run the car once a month long enought to have the fans come on. I have never experienced any problems with the injectors, seals, or any other part of the fuel system which could in any way be due to the use of injector cleaner. Bottom line: Use of any product should be predicated upon a number of factors. Blanket condemnations or recommendations should always be taken with a grain of salt. No connection to Chevron - just my zwei pfennig. Dick Ryan