👉 Trim fluid, also known as lubricating oil or grease, is a critical component in mechanical systems designed to reduce friction and wear between moving parts. It acts as a protective layer, minimizing direct contact between surfaces and thereby decreasing heat generation and extending the lifespan of components. In engines, transmissions, and other machinery, trim fluid ensures smooth operation by maintaining optimal lubrication levels. Its viscosity and composition are carefully selected to match the specific operating conditions of the system, providing effective lubrication under varying temperatures and loads.