My mates having his s max done next week. But ive always been a bit skeptical on these things. as there should be enough cleaning agents in the high ron fuels. just wondered if anybody has had it done and what results it made if any..
Placebo improvements. For the cost you could pull your injectors out and get them cleaned professionally and have money left over! Remember if something sounds too good to be true it generally is!!
I'm always sceptical about rubbish like this but from what i have personally seen it actually seems to work. I have seen before and after RR printouts on a couple cars now and it does seem to make a difference. I still wouldn't put it anywhere near mine though