Here’s another Flint Hydraulics Tech Tip: What is the most important part of a hydraulic system? The fluid. Hydraulic fluids are not created equal; they do not all have the same capabilities. Every hydraulic component manufacturer specifies fluid parameters that MUST be adhered to if the component is to work properly and last a long time. Need help troubleshooting your system? Call our team of certified fluid power specialists today: 901-794-4884. Or email us at firstname.lastname@example.org.