Ok i have a 95 mazda Millenia S and it has 130,000 miles on it i got it some time in August and it was at 13,000 miles. Anyways my question is about what time should i start to worry about my car motor messing up or something ? and i have rims and tvs and a sound system in my car and i dont wanna buy a new car is it worth it to get a new motor ?? and how much would a new motor cost ??