👉 Jack fluid, also known as jack oil or hydraulic fluid for jack stands, is a specialized lubricant and hydraulic fluid designed to provide smooth, stable, and low-friction operation for hydraulic lifting equipment, such as car jacks. It is formulated to minimize wear and tear on both the equipment and the surfaces it lifts, ensuring efficient and safe operation. Jack fluid has a high viscosity index, meaning its consistency remains stable across a wide range of temperatures, and it is resistant to shear, which helps maintain its lubricating properties under pressure. This makes it ideal for use in hydraulic jack stands, which require consistent performance to safely elevate and lower vehicles without damaging them or the equipment itself.
