diesel oil alternative?

reddog said
PQIA runs tests on oils from time to time.

Here is Rotella T4 from March 2017.

PETROLEUM QUALITY INSTITUTE OF AMERICA TEST PROGRAM

I run this in both my valiant and corvette fuelie.

That's in line with other posted oil analysis. Its different from the CJ but hardly low. It be fine for something with stock or close to stock spring loads.
2014 T6 5W-40, API CJ-4 / SM Petroleum Quality Institute of America
2016 T6 5W-40, API ? New bottle shell rotella t6 5w-40 | Virgin Oil Analysis - PCMO/HDEO | Bob Is The Oil Guy
2017 T6 5W-40 API CK-4 vs older CJ-4/SM VOA Shell Rotella T6 May 2017 | Virgin Oil Analysis - PCMO/HDEO | Bob Is The Oil Guy
No API S grade on the new stuff.