Fuel separators provide effective protection for engines used in automotive, industrial and marine applications. The separator removes water and solid contaminants from the fuel before it reaches the fuel pump. When the fuel contains a lot of water, it wears off the lubricants from the fuel injectors. By removing contaminants, the device prevents the engine from getting clogged up with solid material. Clean fuel enables the engine to run more efficiently. It also prevents engine failure. Diesel and marine fuel separators are amongst the most common types.