The Yokomo RP-113300 RP Ultra Shock Oil #30 (Green) is an R/C silicone damper fluid made for precise shock tuning. The RP Ultra line now offers narrower intervals between core viscosities and uses color coding to make identification simpler during setup. This item comes in a 40cc bottle and fits standard R/C shock absorbers that accept silicone oil.
Used in dampers, the oil alters damping by modifying internal flow, so small changes in viscosity can shift handling balance. When servicing shocks, replace old oil with fresh fluid, bleed air from the shock bodies after filling, and confirm smooth piston travel before reassembling. The green tint marks the 30wt grade within the RP Ultra selection to speed selection at the bench.
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