When formulators are blending "to spec" are additives (or base oil) added beyond what is required to exceed the spec by a safe margin? That is, do companies, for the sake of promoting a "premium" product add more than what is needed?
Take Motorcraft and their crazy amounts of Boron. Do they NEED that much to meet spec or is it maybe to produce a "killer" oil?
Take Motorcraft and their crazy amounts of Boron. Do they NEED that much to meet spec or is it maybe to produce a "killer" oil?