Just had my W208 3.2 in to Halfords for their "Fuel Service Plus" service which I booked on-line for the princely sum of......wait for it... 50 quid. It should have been 70 but they had a special on. Now this includes a fuel additive, fully synthetic oil and filter change. Correct me if Im wrong but I dont think I could buy the stuff and do it myself for that. I think someone made a mistake - but they honoured it anyway - well done Halfords Kettering