By Jeremy P. Greenhouse | October 18, 2011


When the U.S. EPA granted Clean Air Act fuel waivers allowing gasoline containing 10 to 15 percent by volume of ethanol (E15) for use in model year 2001 and newer light-duty motor vehicles, the agency included the following condition, as published in the Jan. 26, Federal Register: “The final fuel must have a Reid Vapor Pressure not in excess of 9.0 psi [pounds per square inch] during the time period from May 1 to September 15.” (Read entire article at link above)

NOTE: Unless the EPA grants a waiver on the Reid Vapor Pressure, this could be a “HUGE” obstacle to getting the newly approved 15% ethanol in the market. “Pete” Landry


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