I don't run cheap oil in my engines or transmissions,a lot of Hi $$$ parts in both and after spending all that $$$ don't want to ruin or shorten the life of them by trying to save a couple of $$$ on the oil/fluid.But I see a lot of people who do use the el-cheap-o oil/fluid and save $$$ and say it works just as well.Money saved on oil/fluid means more $$$ to put some where else on the car.So I'm not saying which is "RIGHT" or which is "WRONG" just wondering which method/way is the best.