QUOTE(baymin @ Sep 29 2010, 08:39 PM)
Sorry... but i don't quite get it. Why did your uncle laugh at the battery? Is it because it is still using the 'old fashioned' water type?
Mostly properly

, let me open up my battery box and see tomorrow...
Tomorrow, I am going to pump full tank again and compare x KM vs RM x.. so far 3 bar left, and 487KM.. will do my math tomorrow and let you guys know

This is what I found out from RIM size, for the car 1.6 best to use 15" for better FC.. While 2.0 can have better FC on 17" RIM. Reason that I found out is..
1. You won't need so much engine power to push a 15" RIM compare to 17"... in first hand you saved some petrol, by not pressing too much petrol to move your car.
2. As long as your RIM + Tayar not heavier than stock weight then you can better FC.

Hope above tips help.. (and valid too)