er... if u dont wan waste minyak, maybe u can try this way.
1. open bonet, remove old battery
2. install new battery, remember fill in acid
3. use jumper connect old and new battery
4. start engine, waiting ~10mins, remove old battery and jumper but don't terminate engine.
(if remove old battery, and engine still active, try turn on headlight, if headlight no too dark, congrat u already success 50%, if remove old battery, engine terminate, then u can sleeping early :D ) notice: remove jumper (+) or (-) from both side first and continue another remain polar. scare short circuit
5. start driving around your kampung area, keep rpm >2000rpm, high rpm can let battery charging faster.
(y around your taman? if your car "dead fire" and cant start again u still can back home get the old battery to change mah) remember: safety first, dont drive too fast, u can try low gear high rpm.
6. after few turns, drive back to home and terminate engine and start engine, if no problem ur car should be turn on. Then everything done.
foreman? if u got familiar or frens is foreman maybe they will help. if not, they will subject you change the new battery