Originally Posted By: F250_SUPER_4x4
Chevron decided to not make any CK4 only oils, all of their oils are CK4/SN multi vehicle so a no go for FORD PSDs.
One could still formulate a CK-4 only HDEO and still not be on Ford's list. The SN doesn't matter with 40 grades, and Mobil hasn't bothered certifying anything for Ford's latest list except their most basic bulk oil. Oh, and low phosphorus Delvac 1 LE 5w-30 is on their "E" iteration of the list.
Chevron decided to not make any CK4 only oils, all of their oils are CK4/SN multi vehicle so a no go for FORD PSDs.
One could still formulate a CK-4 only HDEO and still not be on Ford's list. The SN doesn't matter with 40 grades, and Mobil hasn't bothered certifying anything for Ford's latest list except their most basic bulk oil. Oh, and low phosphorus Delvac 1 LE 5w-30 is on their "E" iteration of the list.