Fishstyx, you need to re read anything Mopar puts out.. their manuals are poor.. and somewhat misleading...
this is what the OM says on page 398 of the 2024 Owners Manuals..
Quote:
In ambient temperatures above 0°F (-18°C), we recommend using 10W-30 engine oil such as Mopar®, Shell Rotella and
Shell Rimula that meets the manufacturer Material Standard MS-10902 and the API CK-4 engine oil category is required.
Products meeting Cummins® CES 20081 may also be used. The identification of these engine oils is typically located on
the back of the oil container.
In ambient temperatures below 0°F (-18°C), we recommend using 5W-40 synthetic engine oil such as Mopar®, Shell
Rotella and Shell Rimula that meets the manufacturer Material Standard MS-10902 and the API CK-4 engine oil category
is required.