Yokomo RP-085050A Silicone 5000cSt Gear Diff Oil - Racing Performer Ultra  [RP-085050A]

Yokomo RP-085050A Racing Performer Ultra diff oil #5000
Price:
CAD$17.40
Brand:
Yokomo
Model:
RP-085050A
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Racing Performer Ultra oil: product summary

This silicone-based diff oil is formulated for RC-scale gear differentials where smooth, repeatable diff action matters. The Yokomo RP-085050A Racing Performer Ultra #5000 is a high-viscosity grade designed to limit oil migration and keep differential behaviour steady during longer running periods.

Built with modern high-RPM electric setups and drivetrain load in mind, the formula helps preserve a lubricating film under sustained stress. Manufacturer testing notes indicate validation in demanding race conditions to confirm stability from start to finish.

In practical setup work, higher-viscosity grades such as #5000 increase internal resistance to relative motion inside the diff, producing a firmer response. When changing diff oil, make sure the housing is clean and that components are reassembled to correct torque and shim specifications so the oil can perform predictably.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

How does the "#5000" grade change diff feel?

The "#5000" identifies a relatively high viscosity tier in this line. It raises internal resistance, yielding a firmer coupling between axles and a more locked diff feel useful when you want reduced inside-wheel spin.

Will this oil alter cornering balance on track?

Using a thicker diff oil can stabilise corner exit and help control traction, but it should be applied as part of a broader setup change rather than relied on as a single fix.

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