Yes, I rounded it off to PKR: 12,000. I use Shell's Engine Oil, it is expensive but it's worth it this price is the official price for a brand new bottle of Shell Helix Ultra 5W-40, fully synethic motor oil throughout various Shell petrol station's. No the Fuel Filter and the Oil Filter are two completely different thing's. The Oil Filter is used to filter your Engine Oil it's attached inside a Oil Filter housing besides your Engine Oil pan, you have to replace it everytime you replace your Engine Oil.
The fuel filter on the other hand is a filter which filter's your fuel, it is located inside your Fuel tank taking it out is very risking and time consuming as their are alot of plastic fitting's and valve's inside the fuel tank which if get broken or cracked can cause a major issue. Do not change it unless your Engine is giving you terrible knocking and a horrible fuel average. It is expensive aswell, I asked the price for the Fuel Filter aswell just for knowledge the guy replied with PKR: 8,000.
Yes the Air Sensor/Carburator cleaner was used for cleaning the Throttle Body.
Well, this was the first time I've changed my Spark Plug's since we bought the car back in July 2007. I have only driven it 12,000Km's in three years. This was my four time changing the Engine Oil/Engine Oil Filter. It was my first time getting the Throttle Body cleaned. It also also the first time I got the Brake Fluid flushed and replaced aswell and it was the first time I got the Handbrake tightened.