what kind of engine is tht?? gt display tht saying in sentence for the batt water level........ mine is jst ignition lamp tht show batt only... high tech car (mst b expensive one).... gt display whn is the right RPM for the engine to kick off the best peformance out?? or the right RPM to telling tht is best cruise for fuel consumption?? btw ppl ask for help thn u all tell ths hampsap wording here