Castrol Edge with Syntec PDS with actual values, march 2012:
http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/FCF2E1BFBA9FC5B1802579D10048126E/$File/BPXE-8SYFBX.pdf
My understanding on HTHS is that Castrol only listed minimum acceptable for the grade. It's misleading because of the 0w-30's certifications it would have to be 3.5.