During storage, gasoline will experience slow oxidation of some unstable compounds within the fuel, resulting in gum formation. AFC's fuel stabilizer stabilizes the fuel to prevent the formation of gum deposits for up to 12 months. 

The following test was conducted using the ASTM D525 testing methodology, which tests the oxidation resistance of gasoline under accelerated oxidation conditions. Testing was performed on several samples of fuel, including one sample that was untreated, three that were treated with a competitor additive, and one that was treated with AFC’s fuel stabilizer.