Which motor oil to use after in frame?

[Marajin]

With the mandate removed, your options are a lot more expanded towards choosing engine oils.

Mack, back in the day, made a very high standard for recommended oils that was difficult to even qualify for. It was called the 'Mack EO-N Premium Plus' standard

I would think that an oil that is listed to meet this standard would be of premium quality and provide the engine with the best longevity possible.


  TO-A Plus Transmission Oil- Listing of Approved Oils March 03.pdf (Size: 76.66 KB / Downloads: 506)

here is another good article from back then. http://www.constructionequipment.com/ci-...d-concerns