kao peh la
taxis legal speed limit is 90kmph.. theorectically and practically,
also can never hit like 150-200kmph.... then its always on the
roads for almost 24 hours a day.. very high usage..so use diesel
engine,, cheaper also, soime more after 8 years must scrap..
engine dirty or weaker due to prolonged usage also not really
matter..
but mainly is because diesel is cheaper