Does anyone know definitively whether or not GM adds any “stuff” in their factory dino fill for break in purposes like a dose of EOS for cam break in or something like that? I purchased a car in February that was built in October 2008 and due to the fact the vehicle has basically set around outside during some fairly cold and humid weather I am anxious to get the factory fill dumped but the car has at this time under 500 miles so I do not want to dump the fill too soon if it is doctored up at all.