Yokomo RP-113300 RP Ultra Shock Oil #30 (Green) — Silicone shock oil for R/C damper tuning  [RP-113300]

RP Ultra Shock Oil #30 overview

The Yokomo RP-113300 RP Ultra Shock Oil #30 (Green) is an R/C-scale silicone damper fluid designed for precision shock tuning. The RP Ultra series has been updated with finer gradations across major viscosity points and a color-coding scheme to simplify identification during setup. This product is supplied in a 40cc quantity and is intended for use in standard R/C shock absorbers that accept silicone oil.

In application, the oil serves to adjust damping rates by changing internal shock flow characteristics, so small viscosity changes can alter handling balance. When servicing dampers, replace the used fluid with the new oil, ensure air is purged from the shock bodies after filling, and verify consistent piston movement before final assembly. The green color identifies the supplied 30wt option within the RP Ultra line, aiding quick selection at the bench.