Sat-chit-ananda, that's pretty close to my house. Mine is BSK 3rd stage. Coming back to the point about cleaning the manifold and related things, is it the same for Petrol car as well? I am not very good with the internals, so need some clarification. Also, where is this guy Harish put up? May be I can get it checked as my car is about 80K run. Others may also thrown in some points on my question.