There are a few things that my father taught me about vehicles.  He said that what you put into your car is what you get out of it.  Meaning that if you put cheap stuff in you cannot expect to get great performance or longevity out of the vehicle.  That is why even though it costs more up front I have always used amsoil torque-drive for my truck.  In the end I spend less money and have fewer times when I need to change it.  It is a win win situation in every way possible.  I will one day pass this on to my son.