JP-900 is a generic name representing a future jet fuel that will be required to handle the anticipated thermalstress of ~900
F (482
C) for several hours. In the previous paper in this journal, we showed that the addition,to a JP-8 fuel, of model compounds structurally similar to those potentially derived from the hydrotreatmentof refined chemical oil/light cycle oil (RCO/LCO) blends enhances both the thermal oxidative and pyrolyticstability in a flow rig under approximate JP-900 conditions. In this paper, we report model studies designedto clarify the mechanisms by which the model stabilizers (tetralin,
-tetralol, and
-tetralone) function at 250and 425
C.