What oil filter?

[paul2748]

Not to worry - still has enough ZDDP (1100) for any stock or near stock YBlock. It was reformulated about 3-4 years ago, had 1300 to 1500 before. The old diesels still need ZDDP and they last forever.

Rotella was reformulated?
How long ago? I have some sorta dusty unopened gallon jugs I bought a while back. How can I tell for sure if I've got the old or new?

 

[Alaska Jim]

Glad to hear it is still high in zddp, like I said I had stock-piled a couple of cases of the old Rotella, so I have not even looked at the newer containers to see how much zddp was still in it. guess when my last gallon is gone I will see what is available then.