A reliable method is needed for predicting the long term storage stabilities of the military aviation turbine fuel reserves as well as for evaluating:the effectiveness of antioxidants approved for these fuels. This paper addresses the successful development of such a method. The proposed test method entails measuring the hydroperoxide concentration formed after stressing at 100 degrees C and 345 kPa air overpressure for 24 h with the option to extend to 48 h should this be necessary. Application of the proposed test method to worldwide current production fuels attests to the sensitivity of the method in differentiating fuels with differing storage stabilities.