Helix Racing Products 5 In 1 Fuel Additive 1 - 12 Pack of 8 Oz. Bottles 911-1212Eliminates water: Combustible organic compounds in Helix 5 In 1 encapsulate free water in the fuel. Over time, the water ""burns"" off during normal engine operation. Boosts octane by up to 2 points: E 10 E 15 gasoline absorbs moisture from the air, and if enough water is present will phase separate. 40 80% of the ethanol will be drawn away from the gasoline, forming two distinct layers. The top layer is gasoline with a lower octane, while the bottom