Was a Clio 1.8 16v
My mechanic friend used some dogs boll*cks oil & fuel treatment apprently, but after having run it through the system for 5 mins came the time to give it an oil change.
Hummm, hasnt got the right sized square socket bit so the stuff has to stay in till next weekend!
Dont know exactly what it was but it seemed strong as the xorst smoked for about 15mins afterwards.
Will this do any damage? Please will only any1 who has a good idea post as opinions are only meaningfull with experiance and knowleadge. Not sounding patronising BTW.
Thanx peeps.