Originally Posted By: Powerstroke
DEO will be on its way out as well as the OE diesel oils. However, I would be curious with Amsoil having the new Signature Seies Max-Duty 5w30 CK-4 spec diesel oil, will it replace Amsoil's tried and true HDD Series 3000 5w30? The Upcoming Signature Series Max-Duty CK-4 5W30 is suppose to be Amsoil's best state of the art flagship oil. Really can't wait to see if Amsoil will seek the certification for the new oils.
AME, AMO and HDD are still good sellers, I don't see why DEO and DME could not continue to be sold too.