Leaded or Unleaded Gasoline, Diesel Fuel, Blended Fuels, Pure Alcohol & Fuel Additives. Reliable – No Electrical Contacts, Bearings, Rubber Diaphragms or Valves to Wear Out or Fatigue. Easy to Install & Service. Eliminates Vapor Lock – for Constant, Smooth Fuel Delivery on Hot Days & High Altitudes. Pressure Relief – Eliminates Flooding & Assures Satisfactory Restarting on the Hottest Days. Corrosion Resistant – the All Steel Case Is Plated to Provide Over 100 Hours of Salt Spray Resistance. Self-Priming – to 12 Inches of Fuel Lift.