This 30cc bottle of Yokomo YOKCS15000 is a silicone-based super blend formulated for RC-scale gear differentials. It is provided as a ready-to-use fluid labeled #15000 for hobbyists who tune differential behaviour in on-road and off-road models.
The oil's purpose is to set how the gear differential transfers torque under load; higher-number silicone oils increase the differential's locking tendency compared with lighter fluids. Use this product when you need a firmer diff characteristic for stability during acceleration and cornering, remembering that tuning results depend on the whole drivetrain setup.
Compatibility and installation are straightforward: this oil is intended for RC gear differentials and gearboxes that accept silicone diff fluids, and it is applied by draining the existing fluid and refilling the diff cavity with the selected volume for your unit. Check seals and o-rings for wear before refilling and follow your chassis manufacturer's guidance for specific fill amounts and service intervals.
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