OX90 oil

[paul connor]

As it has come to the inevitable time to change the oil on the Wolf90 I consulted the AESP and it seems OX90 is the oil of preference. This code is new to me and I am unsure what exactly the civilian spec of the oil grade would be. The internet doesn't seem to know?

[ltwtbarmy]

SAE 10/30 synthetic. It’s mentioned in this link-

 

[ltwtbarmy]

Hmm, I see why you posted. Although the link above says 10/30, look at this list, which states 10/40

https://www.nyelubricants.com/stuff/contentmgr/files/0/deef19b1819fc13778a3abec62585c42/en/nye_lubricants__military_brochure___05092023.pdf

As does this-

https://www.nsndepot.com/NSN/9150-99-361-7232

Edited October 14, 2023 by ltwtbarmy

[paul connor]

Thanks for the help. Yes, it is somewhat confusion. I think I will take the NYE Lube chart as the more accurate of the two. At least with SAE 10W-40 I have some in the workshop! It also corresponds to the civilian recommendation for the 300TDI

[fv1609]

Paul OX-90 ? Surely you mean OMD-90?

[radiomike7]

5 hours ago, fv1609 said:

Paul OX-90 ? Surely you mean OMD-90?

I understood OX** was synthetic?

[fv1609]

[fv1609]

[paul connor]

That is what was confusing me Clive. AESP 2320-D-128-601 Maintenance Schedule states OX90.

I bought some SAE 10W-40 diesel oil from Mannol which I assume will do the same job. It does not meet the E7/E6 ACEA but not many seem to unless you get really expensive. I cannot imagine the 300TDI even with EGR requires specialist oils. 

 

Thanks

Paul

[fv1609]

Paul that's interesting I wonder what edition of 601 you have? The spec seems to have gone though a lot of changes I only have:

2nd ed June 1997 OMD-80
3rd ed May 1999 OMD-80X
6th ed May 2010 OMD-90

Looking at the latest Def Stan 01-005 Issue 20 March 2023:
OMD-90 10W-30
OX-90  10W-40

[paul connor]

This appears to be the 7th Edition from May 2017. 

It is interesting the changes - at least now I know which oil to use, as for a while I was questioning my purchase!