09SMOKINHEMI
Senior Member
It comes on at 3000 miles I believe not smart like GM oil sensor is. It simply comes on when the vehicle hits certain mileage. As I have posted before I have been changing at 10000 and my dad has been doing the same with amsoil and distance filter which get pretty nasty by the end of it.
so you don't go the full 25K with the amsoil oil and filter?