When oils are stored in tanks, temperature drops can cause contraction and create low pressure inside the tanks. This pressure imbalance often results in air being drawn in through vents, bringing with dust and airborne particles that may carry microorganisms. The water content in oils mainly originates from condensation inside refinery storage tanks as they cool, moisture introduced during transportation, or humidity entering through tank vents. These sources of water provide essential conditions for microbial growth. Microbial contamination in fuel typically occurs at the oil-water interface, tank roof, shell, and bottom areas. Such contamination can lead to a range of problems, including fuel acidification, failure in copper strip corrosion tests, tank corrosion, and clogged downstream filters. For this application, biocide products must not only be highly effective against microorganisms but also maintain the performance characteristics of the fuel. To address these challenges, Henning has developed a series of biocides specifically tailored for fuel systems. These products offer strong and fast-acting antimicrobial performance while maintaining excellent compatibility with fuel formulations, effectively protecting your products from microbial threats.