Team Associated Silicone Diff Fluid, 20,000 cSt is a Factory Team premium silicone blend designed for RC vehicle differentials, providing consistent action and longevity. It is a relatively thick fluid that provides tuning for handling by restricting differential action, making it less likely to "diff out" in corners where tires turn at different speeds. This fluid is temperature-stable and is used to fine-tune RC vehicle handling, with a viscosity suitable for gear diffs