Combustion is not necessarily favorable to the maximum degree of oxidation, and it can be temperature-dependent. For example, sulfur trioxide is not produced quantitatively by the combustion of sulfur. NOx species appear in significant amounts above about 2,800 F (1,540 C), and more is produced at higher temperatures. The amount of NOx is also a function of oxygen excess.
Based on the above text, what's the best answer to this question: does oxidation always result in the initiation of a fire?
no