My adventure gls sport 2003 diesel is due for changing oil last dec. 2005 as per the periodic check up is concerned. mababa lang ang milage nya less than one thousand after the previous change oil kaya lang more than 6 months past na. wala kasing magdala sa casa to change the oil.. by march pa makakauwi ang misis ko para sya ang magpachange.. ano kaya ang effect nito sa sasakyan, first time nangyari ang ganyan.. every other day pinapaandar naman ng kapatid ko.. pero hindi pinapatakbo kaya ganon ang milage consumption for the past 6 months.. please help naman kung ano ang dapat gawin.. thanks in advance..