Yokomo RP-085050A Racing Performer Ultra diff oil #5000 - silicone differential oil for RC gear differentials  [RP-085050A]

Yokomo RP-085050A Racing Performer Ultra diff oil #5000
Price:
USD$12.60
Brand:
Yokomo
Model:
RP-085050A
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Racing Performer Ultra diff oil overview

This is a silicone-based diff oil formulated for RC-scale gear differentials where smooth, repeatable diff action matters. The RP-085050A Racing Performer Ultra #5000 is presented as a high-viscosity grade intended to keep differential behaviour consistent over extended runs without rapid oil migration.

Designed from the perspective of drivetrain load and modern high-RPM electric setups, the oil focuses on maintaining lubricating film integrity under sustained stress. Independent race use described by the manufacturer indicates the product was validated in demanding race conditions to confirm stability from start to finish.

In practice the oil is used as part of tuning the differential action: higher viscosity grades like #5000 increase resistance to relative motion inside the diff and are chosen when a firmer differential response is desired. When changing diff oil, ensure the diff housing is clean and reassembled to manufacturer torque and shim settings 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.

What does the "#5000" indicate?

The "#5000" denotes the oil grade used for tuning diff feel, representing a relatively high viscosity in the Racing Performer Ultra line suitable when a firmer diff response is needed.

How does this oil affect on-track handling?

Higher-viscosity diff oil increases internal resistance, which can stabilise corner exit and reduce inside-wheel spin; use it as part of a balanced setup change rather than a standalone fix.

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