Originally Posted By: WhizkidTN
Originally Posted By: BrocLuno
Originally Posted By: 6starprez
It's gasoline rated on the jug. Look at the last item in the ratings list. JASO MA (motorcycle, of which 99% are gas powered). I think they are doing this because State of Cali will not allow "obsolete" oil ratings to be sold. So SM is now obsolete and the new rating of SN will not fit the add pack for 5W-40 ... They may just be playing regulators games ...
Based on your photo, the latest batch of T6 5W-40 oil is NOT rated API SM/SN which the majority of modern day gasoline car engines require.
Thus, don't use it in your gas powered car that requires API SM/SN rated oil.
Correct?
Calm down folks...
CK-4 with no spark rating (SM, SN) will still have the phosphorus rating of the older spec CJ-4. In other words, aside from some formula tweaking, it should be very similar in performance and protection for those of you sold on it and currently running it in gas engines. Dual rated oils, such as CK-4/SN, have to conform to the lower phosphorus limits of the spark engine designation.
If you think this is confusing, head on over to the Chevron website where the choices for diesel applications are now in the double digits. Add in Ford's hot mess of WSS-M2C171-F1, and usually pretty quiet Powerstroke guys (in comparison to the Cummins crowd anyway) are now circling the room, muttering to themselves, and looking for a Valium.
In the history of this chat room, I've never seen such a lather about running an oil that was not specifically made for a particular application.