Located in Hayward, Calif., H2OIL Corporation is an environmental technology firm, manufacturing nanotechnology fuel and engine oil additives. Based in Hayward, Calif., the company, under the brand name F2-21, markets its fuel and oil products. It produces F2-21 Nanotech ee Fuel Additive for gasoline, diesel fuel and bio fuels. H2OIL Corporation also produces F2-21 Nanotech ee Lube Additive for conventional, synthetic and blended lubricating oils. The company helps in cleaner and greener drive by providing various solutions to help conserve energy, improve air quality, reduce carbon footprint and fight global warming.