[moefuzz]

By the way,


Shell is Licensed to produce Rotella T as API CJ-4 spec which I believe is a 1979 or 80 License/specification based on a 1967 License/spec which dates back even further, to the earliest of Rotella Formulas before there was an API granting them a License and permission to manufacture it for the North American Market.


CJ-4 has not changed since 1980.
-The license is still applied for, granted and/or up for revocation.

If the exact standards are not met with each and every Daily (365) batch, The License is revoked, Which means no oil, no product, no market.






-->The CJ-4 Spec is considered by the API to be "On Hold"
(not cancelled or obsoleted).
This is a good thing for us old car guys.


Personally, I tend to believe that the 1967 API license refers to the point at which Shell brought the original 1940's?
Shell Rotella straight weight (10w 20w or 50w) oil into the new age of multi-grade oils (10w30 or 10w 50 etc) in 1967.



Since 1967, and certainly since 1979 or 80.
Rotella T has not changed
And more importantly for us old car guys,


The API considers it to be "On Hold".























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