What is a critical environmental concern that FSII addresses in aviation fuel?

FSII, or Fuel System Ice Inhibitor, is an important additive used in aviation fuel, specifically designed to address the issue of microbial contamination. In aviation fuel systems, water can accumulate, creating an environment conducive to the growth of microbes. These microorganisms can lead to the formation of sludge and other deposits, which can interfere with fuel flow and damage engine components.

By preventing microbial growth, FSII helps maintain the integrity of the fuel system and ensures optimal performance of the aircraft. This is crucial for aviation safety, as microbes can cause fuel filter blockages and other operational issues that could have serious consequences during flight. Hence, the role of FSII in combating microbial contamination emphasizes its significance as a critical environmental concern in aviation fuel management.