I think orly is right, the corona was discontinued as early as 1998. Considering well maintained mo naman yung exsior mo it would give you probably another 5 years. After that baka bigyan ka na ng sunod sunod na problema.The main reason why I sold my corona is because of parts availability.Parts are hard to come by and kung sa casa ka bibili of course premium ang charge nila.Talo ka rin kasi kung ibebenta mo sa buy and sell. Ang usual comments nila hindi dahil dos litros kundi nagbbirthday yan sa kanila, meaning mahirap ibenta.Ive been there and done that.Gamitin mo nalang hanggang sa sobrang dami na ng sira and hindi ka na manghihinayang na dispose sa mababang halaga