hey guys, i recently picked up a 94 3.8l mustang as a winter car. i know what your thinking why a mustang, but it was really cheap and what not. anyways my question is the previous owner put a water temp gauge in the car, and now the actual temp gauge on the stock cluster doesnt work. So what is the optimal temp the car should be at? normally i look at the stock gauge if its half way were all good, but i cant do that in this situation. Thanks for your help!