nisan sunny manual should be able to do
12-13km/lit, try to shift gear around 2500rpm rather than dragging
it further, oso, same for those heavy footer who always drive
around 100km/h, btw, what is the average speed u do on the
xpressway huh? try not to accerelate too much, check your spark
plugs and tyre air pressure, all this and that would affect
significantly on FC 