Done the 2nd free service at 9860 kms (10000 km service) at VST Motors (India Garage) and it costed around 3297/-. I was wondering why they billed so much when I found that they did an "engine protection coating" for Rs. 799 without my approval and I am annoyed about it. Since today is a Sunday I am unable to raise this issue. But I want to bring it to their attention that they cannot do "Extras" without my approval next time. By the way, is the engine protection coating really of much use or is it just a fancy padding for the bill? I want to give the SA a piece of my mind for doing such work without getting my approval first. Since it is financial year ending I think they are doing such things to boost revenues, but it appears to be a highly unethical action on the part of an authorized dealer.