Originally Posted By: Rookietech
Does motorcraft oil have cleaning agents like valv. and pennzoil?
Rookie,
Oils generally meet, or exceed, one, or more, industry standards. E.g., SAE, ILSAC, ACEA, or a manufacturer's specification (FORD, BMW, VW, MB, Honda, etc). Generalizing, they all have some requirement for cleanliness. Sooo... theoretically... if any oil says it meets, or exceeds, a given spec... it should regardless of manufacturer or source of its base materials and additives.
And, since all of today's oils are 'SM' ... for example...any one of them should be OK. How they are engineered to get there may, or may not, be that important in the big picture.
Ahhh so confusing....