Yokomo YOKCS20000 Super Blend Silicone Oil #20000 20K 30cc - Silicone shock oil for 1/10 scale RC dampers  [YOKCS20000]

Silicone shock oil for RC dampers

This is a 30cc bottle of silicone shock oil formulated for RC-scale dampers, labeled with a 20000 viscosity rating. The product is intended as a tuning fluid for shock absorbers and damper cartridges on electric and nitro 1/10 scale models and similar RC applications. It is presented as a neutral, single-component silicone fluid suitable for adjusting compression and rebound behaviour within shock assemblies.

Installation and use follow standard shock maintenance steps: remove the shock from the chassis, disassemble the shock shaft and piston assembly, drain the existing oil, inspect seals and pistons for wear, then refill with the target oil volume and bleed trapped air before reassembly. Precise oil level, piston size, and shock length determine final behaviour, so record baseline fill volumes and settings when testing changes.

Tuning role: 20000cSt is a high-viscosity option used to increase damping force and slow rebound and compression compared with lower-viscosity oils. Changes in viscosity affect how quickly the shock returns and how the chassis responds over bumps; use incremental changes and test runs to evaluate real-world effects on handling. Avoid assuming identical results across different piston hole sizes or shock designs, as internal geometry strongly influences effective damping.

Handling and safety: keep the bottle capped when not in use, store away from heat and direct sunlight, avoid skin contact and prolonged inhalation of vapours, and keep out of reach of children. Clean spilled oil from shock bodies and components before seating seals to prevent leaks.