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Thanks volk06. That shows that it does meet the same mfr specs as regular QSED. In fact, your reply helped me find the TDS for reg QSED at http://www.epc.shell.com/Docs/GPCDOC_X_cbe_26680_key_140003745457_201012011641.pdf . It looks identical. So is this just a product from the marketing dept?

I just saw this on the Quaker State Canadian web site: http://www.quakerstate.com/CA/#/CA/motor-oil/enhanced-durability-winter A specific Winter Blend, but still 5W-20 or 5w30? It doesn't list any manufacturers' specs though. Anyone know anything about this?