I have a 89 Buick LeSabre,the engine has over 200,000 miles on it.The engine sounds great & run great.I have been taking good care of it doing evreything to keep it running perfect.Can someone tell me how long can that type of motor last if you are taking care of it.I was thinking about getting a motor later on down the road but not too soon.Give me some positive feedback on this question.