What is one of the main functions of FSII in fuel systems?

The primary function of Fuel System Ice Inhibitor (FSII) in fuel systems is to prevent water formation in fuel. When fuel contains water, especially at low temperatures, ice can form, leading to potential blockages in fuel lines and filters. This ice formation can hinder fuel flow, potentially damaging the fuel system and affecting engine performance. By incorporating FSII into the fuel, the risk of ice formation is significantly reduced, which helps ensure the reliability and efficiency of the fuel system, particularly in cold operating conditions.

While there are other functions and properties related to fuel quality, they are not the primary role of FSII. Enhancing calorific value or increasing volatility are not functions of FSII; these aspects relate more to the chemical composition of the fuel itself rather than the preventative measures against ice and water. Similarly, fuel temperature stabilization does not directly relate to FSII's actions, as it primarily focuses on managing the effects of water and ice in the fuel system.