RBOB must be segregated from RFG, and from other RBOB having different oxygenate requirements, to the point of oxygenate blending. There is no need to separate "any oxygenate" RBOB from other "any oxygenate" RBOB.(7/1/94)
This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (PDF)(333 pp, 18.17 MB, EPA420-R-03-009, July 2003, About PDF)