The use of ethanol as a fuel in the United States has significantly increased over the past decade. Today, greater than 80% of all retail gas stations in the US blend gasoline with up to 10% ethanol (E10). One of the main concerns in the supply and storage of ethanol is the potential for what is called “phase separation” in gasoline that contains ethanol. Phase separation occurs when enough water contaminates the gasoline. This causes the ethanol to attach itself to the water molecules, leaving two distinct layers in the storage tank: a gasoline-only layer at the top and an ethanol/water “cocktail” along the bottom. There are 3 negative effects of phase separation: damage to your retail dispensing infrastructure. The fluid resulting from Phase separation is highly corrosive and can damage your storage tank, submersible pumps, piping and fuel dispensers damage to customer vehicles and your gas station brand. Phase separation in most vehicles will cause eng...