👉 The ISO fluid, or International Organization for Standardization fluid, is a standardized type of lubricant used in various mechanical systems to reduce friction and wear between moving parts. It is characterized by its consistent chemical composition, ensuring reliable performance across different applications and manufacturers. ISO fluids are typically synthetic or semi-synthetic in nature, offering superior thermal stability, oxidation resistance, and viscosity control compared to conventional mineral oils. This makes them ideal for high-performance applications in automotive, industrial machinery, and aerospace sectors, where consistent lubrication is critical for efficiency and longevity.