Is it marketed as a diesel or Euro oil?
CF is an API old diesel spec. M1 0w40 is API CF as well.
Im more worried it’s not A3/B4 assuming it’s supposed to be a euro oil, but in an old not so picky Audi such as mine, i wouldn’t worry about it. It’d have to be cheaper than M1 0w40 for me to use it though.
Im guessing 1 being CF/ SN and the other not is just a difference in packaging. Somewhat of a big mistake IMO. Not many American vehicles call for 0w40 and before somebody says it, no, this oil wasn’t intended for use in the 6.4 Hemi.