Update to LeeC & OP. I was in Walmart today and made a trip back to automotive. The 1 gallon jug of Rotella T6 15w40 has a different label that the one posted here. Front has images of a motorcycle, passenger vehicle and HD Equipment and back label has SN listed last after CH along with the JASO MA/MA2 as the one posted. The bigger jug the stock does not have the SN listed and neither did the lighter weight T6. So, I agree and think it looks good to go. I think for some reason I read in a post a long time ago it used to be on the label but was taken off a people were concerned the formula had changed that were using it in their Goldwings. I also looked through the owners manual for the Tracker ATVs and it did not give specs for cross-reference to other oil options.
