thanx,bro you are actually right but i was asking abt other physical impurities, like dirt etc, Lead can also be the cause.. actually there is no check and balance on the petroleum companies the whole process of petroleum transportation in Corroded/rusted vehicles and storage into substandar tanks, oh i forgot to mention the mixing of water/other stuff into petrol/diesel by dishonest petrol pump owners..
so we should clean the tank along with the injectors???
+1, alittle loss in the form of dirty petrol is nothing if your injectors can be saved..
thank you brother, how much time does it take to clean a petrol tank by a mechanic and whats the labour cost
thanx brother , can you plz elaborate.. did it happen after petrol tank cleaning??