👉 The wt fluid, or total weight fluid, is a term used in the context of internal combustion engines to describe the mixture of gases and liquid components present in the engine's combustion chamber. This fluid primarily consists of water vapor, which is produced from the evaporation of water used in engine cooling systems and sometimes added as a lubricant additive. The wt fluid plays a crucial role in engine performance, cooling, and lubrication, and its composition can significantly affect the engine's efficiency, emissions, and longevity. Proper management of wt fluid levels is essential for maintaining optimal engine operation and preventing issues like corrosion or excessive wear.