http://www.systemproducts.com/ Anyone ever heard of this product ? I was watching the shopping channel the other day and it was being advertised. They were showing some very impressive tests. They had this two year old Merc which would have apparently failed its MOT due to emissions, however they poured this stuff into the petrol tank and the emissions dropped by nearly 70%. I have no intension of buying the product as I'm quite sceptical about petrol additives, I was just wondering what all your views are, also who's car on here has failed its 1st MOT due to emissions ?