I think what you are talking about is the Shell Rotella Ultra T5 10W-30 that is SN Rated. The Shell Rotella T4 10W-30 is not SN Rated at this time. I did call my local AAP and they did tell me that the 15W-40 T4 on there shelves has the SN Rating on the Jug.I only looked at 15w-40 T4, the change to SN was reported less than a week ago.
From the VOA's I've seen 10w-30 SN rated T4 is below 1000 ppm in both P and Zn.
I recently picked up a gallon jug of the Shell Rotella T4 10W-30 and a gallon jug of the Shell Rotella T5 10W-30 and neither jug has the SN Rating on the Jug.