CJ-4 vs CF-4

[Bobjones]

I have a B 2650HSD and its time to change oil. I have Shell Rotella T 15W-40 which is CJ-4. My manual asks for CF-4. Is this a big deal?

 

[85Hokie]

I have a B 2650HSD and its time to change oil. I have Shell Rotella T 15W-40 which is CJ-4. My manual asks for CF-4. Is this a big deal?

CJ-4 is a newer and "mo" better for the newer current diesel engines. That Rotella is great stuff.

CF-4 is a 1991 standard

CJ-4 is a 2006 standard oil!

Fill 'er up - your engine will love you for it !