Jet fuel is used for cooling in high-performance aircraft. Unfortunately, jet fuel reacts with dissolved O-2 in the presence of heat to form unwanted surface deposits. Computational fluid dynamics that incorporates pseudo-detailed chemical kinetics with a wall reaction is used to simulate the effects of treated and untreated stainless-steel surfaces on the liquid-phase thermal oxidation of jet fuel in both isothermal and nonisothermal heated-tube experiments. A hydroperoxide decomposition reaction is used to represent the surface chemistry. The effects of a treated surface on thermal oxidation were modeled by adjusting the activation energy of the surface reaction. Nonisothermal heated-tube experiments that measure dissolved O-2 are performed here, whereas isothermal flow experiments are performed elsewhere. Simulations of dissolved O-2 consumption in the presence of treated and untreated surfaces, which include the wall reaction, agree reasonably well with the dissolved O-2 measurements.