I have a 89 4x4 Ford Ranger with the 2.9liter 179 cubic inch V6 and automatic transmission. Also it has 4.10 gears in the axles. So it skins about 2 grand at double-nickle. If that help you guys help me choose an oil. I ussually run it at 50 with the cruise on. On the E-way I will run it up to 80 plus some times when the cruise isn't set. If I use the cruise on the E-way I set it at 70-75. This engine has 140K on it and doesn't use any oil to speak of. Maybe a quart every oil service of 3k. I have a few dozen Super Tech st43 filter I got for 50 cents a piece so I will be using one of them. I was thinking some 5W-20 since I have three quarts of valoline on the shelf. I was think after this oil service of using GC 0W-30 would these be good chooses. As it is winter in michigan. It can and will see 0 degrees many mornings. Since I am seeing these temp should I just break down and use the 5W-20 in my grandma's escort and get the GC 0W-30 for this oil service.