how to save sprit ?

Hello, wanted to know if there are tips like you can save with a focus sprit? And how far can you drive with a tank filling (inside town). e.g. When golf you should not uncouple and let go in while braking and so on such tips I am looking for. Is there also a side where there are as many tips as possible special for the focus? With the Golf IV there were ne info pool side michaels or so similar it was there which common faults and tips were in there which were very helpful. i google can only be found so forums. mfg ibo