Motorguy222, I switched to Chevron oil after I discovered this web site. My previous car ran great with that Chevron oil. Chevron seems to consistently produce great VOAs and UOAs.
Another great oil is Schaeffer's. It is more expensive and you probably will not be able to find it locally (you would have to order it from Tim Mills). But it is hard to beat and some people here compare it to synthetic oils. In fact you can get a synthetic Schaeffer's but most people seem to use the blend.
Another great product I discovered here is Auto-RX. It is great for cleaning a high mileage engine. Some people have reported very great performance improvements.