Yokomo YOKYS350 Super Blend Shock Oil #350 for R/C Dampers  [YOKYS350]

Silicone Shock Oil for RC Dampers

This silicone-based fluid sold as Yokomo YOKYS350 carries the #350 viscosity rating and is formulated specifically for R/C shock absorbers on model cars and buggies. As an R/C-scale accessory the oil's purpose is to deliver predictable damping inside threaded shock bodies and cartridges, influencing both compression and rebound without implying any real vehicle application.

In use the oil acts as the damping medium inside each shock; switching to heavier or lighter viscosity changes how quickly the shock compresses and returns. When tuning, move one viscosity step at a time and confirm changes on the track or practice area, observing body roll, traction transitions, and the model's response over repeated bumps.

Installation follows standard procedure for threaded shock cartridges: fully disassemble the shock, drain the old fluid, inspect seals and pistons for wear or contamination, then refill to the manufacturer's recommended level before reassembling. Work in a clean area and remove trapped air by cycling the piston slowly while topping up the oil.

Tuning advice: choose the 350 grade when a medium-to-firm damping character is required, and pair oil choice with spring rate and preload to achieve the desired balance between stability and compliance. Test with short runs and adjust incrementally rather than making large jumps in viscosity.