Brother, relax leh........U sure don't want to save some fuel to
damage the gear box dio boh ? The change of auto gear box cost
about $6000, translate into 48,000 km based on 12km/l consumption.
Boh hua right....But, at traffic light, if don't shift to "N", u
put yrself in danger b'cos if someone hit u from behind, yr car
will move into the crossing traffic....sure liao one. So, depends
on situation and how long u waited. 
