Diesel,as a fossil fuel, contains micro-organisms that can reproduce in both oxygenated (aerobic) and oxygen-free (anaerobic) environments, as well as a certain amount of water, due to its structure. It may cause the fuel to become unusable or cause equipment such as the generator fed from this contaminated fuel to not work/damage at the time of use. The Fuel Polishing process disables the microorganisms in the diesel and ensures that the fuel is stored in a clean and ready-to-use condition at any time with full performance. In addition, since it separates the water in the tank from the environment, it prevents oxidation in the tanks and extends tank life, reducing the need for periodic tank cleaning.