Aviation lubricants play a crucial role in ensuring the safe, stable, and durable operation of aviation engines under high-speed and high-temperature conditions. They provide lubrication, cooling, cleaning, sealing, and rust prevention for all gears, bearings, and splines. However, it's important to note that high temperatures can significantly impact the performance of these lubricants.This paper examines the factors influencing the high-temperature performance of aviation lubricants, taking into account various operational conditions and their resulting requirements. It explores the mechanisms of oxidation and evaluates different methods for assessing the performance of aviation lubricating oil.This research integrates existing methodologies to explore the high-performance characteristics of aviation engine oil.