GAS PLUS

Ethanol is really good at pulling water out of the air around it. The water condenses in the fuel tank or storage tank and will pull the ethanol out of suspension with the gasoline in a process called Phase Separation. This is bad news because it strips the octane out of the gasoline, leaving you with a layer of octane-poor gasoline (often three numbers lower than before) on top and a water-ethanol layer mixture on the bottom.  If the water-alcohol gets sucked into the combustion chamber, you have the potential for real engine damage.  At the best, you’ll notice a big difference in how the engine is running. Ethanol is corrosive to both metals and rubber compounds. As such, it can increase the level of maintenance required in all of the machinery that comes into contact with it, as well as diminishing the lifetime of that equipment. Ethanol has a lower energy density than conventional liquid fossil fuels. That means less distance traveled for any particular volume, as well as a larger ratio of fuel weight to total weight for vehicles with a particular range. The volatility of ethanol is also problematic. The fact that it turns to gas easily (and has high vapor pressure) can be problematic in hot environments.