So, I spoke to Luke at Conoco Phillips help/tech line. He said that the NOACK for Trop Artic blends are 12.9% and 10% for Kendall synthetic. Kendall synblend NOACK is 11.4%. He said that in about another year or two the Trop Artic, Conoco All Season synblend and 76 blend will be renamed "shield choice" he thinks. Basically those will be under one brand/name. Very helpful man too. Just thought I would share.