Well I have some good news to report. I finally got fed up with my crappy gas milage and went the dealership and ordered a factory O2 sensor. I put it in last week and this past weekend I went on a big road trip. I saw gas milage numbers 29.5mpg, 33.3mpg, and about 26mpg(not solid highway miles). So if any one is questioning there O2 sensor spend the money on a factor sensor and you will notice results. I did. My highway milage before was anywhere between 21 to 24mpg, so that simple O2 change made major improvements.
