14 Viscosities · 2,000–100,000 cSt

Differential Oils

Precision-engineered silicone fluids for RC differentials. From 2,000 cSt for free-flowing front diffs to 100,000 cSt for ultra-thick traction control. Pure silicone, heat-stable, and engineered for consistent power delivery under racing stress.

Traction Control

Drivetrain Tuning, Engineered

Your differential oil dictates how power transfers to the wheels. Too thin and you lose corner-exit traction. Too thick and the chassis feels locked, fighting your inputs. The right viscosity, consistently delivered, is the difference between podiums and frustration.

Rhodex Differential Oils cover the full racing spectrum in 14 precise increments. Each batch is engineered to the same tight cSt tolerance — so when you tune, you're tuning, not chasing variance from generic oils.

Rhodex Differential Oils
Complete Range

14 Precision Viscosities

From light-flow front diffs to ultra-thick rear locking — every cSt point you need for professional setup.

Filter:
Rhodex 2000 cSt Diff Oil

Differential Performance Fluid

2,000 cSt · Light Flow

Free-flowing diff oil for front differentials in 1/10 touring cars and competition setups.

Rhodex 3000 cSt Diff Oil

Differential Performance Fluid

3,000 cSt · Light Flow

Light differential fluid for free-rotating front diffs and high-grip surface tuning.

Rhodex 5000 cSt Diff Oil

Differential Performance Fluid

5,000 cSt · Light Flow

Common viscosity for front diffs in touring cars. Smooth power transfer with predictable corner entry.

Rhodex 7500 cSt Diff Oil

Differential Performance Fluid

7,500 cSt · Light-Medium

Bridging viscosity between light and medium. Versatile for center diffs and balanced setups.

Rhodex 10000 cSt Diff Oil

Differential Performance Fluid

10,000 cSt · Medium

Standard center differential viscosity. Reliable choice for balanced 4WD power distribution.

Rhodex 12500 cSt Diff Oil

Differential Performance Fluid

12,500 cSt · Medium

Mid-range center diff oil. Slight tightening for higher-grip surfaces and corner-exit power.

Rhodex 15000 cSt Diff Oil

Differential Performance Fluid

15,000 cSt · Medium

Higher-grip center diff viscosity. Used by competitive drivers seeking on-power stability.

Rhodex 20000 cSt Diff Oil

Differential Performance Fluid

20,000 cSt · Medium-Heavy

Standard rear diff viscosity for off-road buggies. Strong corner-exit traction.

Rhodex 25000 cSt Diff Oil

Differential Performance Fluid

25,000 cSt · Medium-Heavy

Tighter rear diff for power tracks. More mechanical traction, less unwanted wheel spin.

Rhodex 30000 cSt Diff Oil

Differential Performance Fluid

30,000 cSt · Heavy

Heavy rear differential fluid. Locked-feeling traction for high-power buggies on grip-rich tracks.

Rhodex 50000 cSt Diff Oil

Differential Performance Fluid

50,000 cSt · Heavy

Heavy traction control fluid. Near-locked feel for short-course trucks and high-power applications.

Rhodex 60000 cSt Diff Oil

Differential Performance Fluid

60,000 cSt · Very Heavy

Very heavy diff oil. Specialist viscosity for extreme-traction setups and locked-axle simulation.

Rhodex 100000 cSt Diff Oil
Ultra-Thick

Differential Performance Fluid

100,000 cSt · Maximum

Maximum viscosity in the range. Ultra-thick fluid for spool-like behavior and extreme traction needs.

Quick Reference

Differential Oil Selection

A starting point for selecting the right viscosity. Track conditions, driving style, and chassis platform all influence the optimal choice.

Diff Position Typical Range Use Case Common Choice
Front Diff (4WD) 2,000 – 7,500 cSt Free corner entry, light steering response 5,000 cSt
Center Diff (4WD) 7,500 – 25,000 cSt Power balance front/rear, on-power stability 10,000 cSt
Rear Diff (4WD) 10,000 – 30,000 cSt Corner-exit traction, mechanical grip 20,000 cSt
Single Diff (2WD) 3,000 – 10,000 cSt 2WD buggy traction tuning 5,000 cSt
Locked-Like Setups 50,000 – 100,000 cSt Spool-equivalent behavior, extreme traction 100,000 cSt

Tuning Principle

Thicker oil = more locked behavior = more on-power traction but slower direction changes. Thinner oil = freer rotation = better corner entry but reduced power application. Tune for your track and driving style.

Find Your Setup

Differential Tuning, Done Right.

14 precision viscosities. One bestselling brand. Available now on Lubricants Hub.