Originally Posted By: stubbakatt
Of the two, I'd use Havoline because of the better add pack. I'd use it more often if Walmart still carried it around here. I think it used to have a group II+ base oil and Quaker State was just Group II. Its been a while since I checked, so things may have changed.
Im not all that fermiliar with add packs and Group II and stuff. Could someone explain it better?