According to the NAPA auto parts website, the MO899 is the factory spec filter for vehicles w/o an oil cooler system. Depends upon how far people push their oil life, the DART filter will be just fine. I'm using the BOSCH 3334 that I bought on clearance for $4.00. I have 2 left, I'm changing oil every 5k miles no matter what the EVIC says. So @ 25k miles I will be changing to my old reliable brand....AC/DELCO PF48 fits the 6.4, and I have 500k+ miles on several small block chevys over the years using that filter with NO oil related issues...