Silicone 30000CPS SPECIAL DIFFERENTIALS

Total control of the differential: silicone 30000CPS to fine-tune your setup

In the preparation of a slot car, the differential is one of the elements that most influences how the car distributes traction when exiting a corner. The viscosity of the oil inside directly determines the degree of locking: higher viscosity means greater locking; lower viscosity means more free and progressive behaviour. With the Silicone 30000CPS Special Differential (MP012-30000), we work in the high viscosity range, ideal for circuits with slow corners or when we seek a more solid and predictable response when accelerating.

Main features

• Viscosity 30000CPS: high range providing a pronounced locking differential, suitable for those seeking stability and direct traction.
• Specific formulation for differentials: compatible with the common materials of pinions, crown gears, and differential cages in slot cars without attacking or degrading them.
• Reference MP012-30000: clear identification within the range to facilitate replenishment and comparison with other viscosities in the same series.

Recommended applications

This oil is designed to refill or replace the differential fluid in slot cars equipped with this system. It is especially useful in:

• Circuit layouts with tight corners and low speed, where firm locking helps maintain traction.
• Competition setups where the driver prefers a more direct and predictable response when accelerating out of corners.
• Season adjustments or circuit changes, replacing lower viscosities with this one to increase rear grip.

Behaviour and performance

With 30000CPS, the differential operates quite locked: both rear wheels receive a very similar torque distribution, resulting in greater push and less tendency to understeer during acceleration. If the circuit has fast or wide-radius corners, it may become too stiff and cause understeer. In that case, the solution is to switch to a lower viscosity within the same range. The key is to test and adjust: silicone is easy to change and the effect on the car's behaviour is immediate and clearly noticeable.

Usage recommendations

• Completely clean the differential before introducing the new silicone to avoid mixing viscosities that alter the result.
• Apply the right amount: excess does not improve performance and may leak into unwanted areas of the rear end.
• Keep the container closed and away from heat sources to maintain its properties over time.
• Note the viscosity used in each track configuration to repeat or correct adjustments in future sessions.

Frequently asked questions

What is the difference between using 30000CPS and a silicone of lower viscosity?

With higher viscosity, the differential is more locked: both rear wheels turn at a more similar speed. This provides more direct traction but may penalise performance in fast corners. A lower viscosity makes the differential more free and progressive, gaining agility in corners at the cost of some push.

Is it compatible with any type of slot differential?

Yes, the silicone formulation is compatible with the common plastic and metal materials in the differentials of slot cars from major brands. It does not attack seals or technical plastic parts.

How often should I change the differential oil?

It depends on usage. In regular competition, it is recommended to check it at the start of each season or when you notice changes in the car's behaviour. In recreational use, an annual check is usually sufficient.

Can I mix this silicone with another of different viscosity to achieve an intermediate value?

Technically it is possible, but we do not recommend it: the mixture may not be homogeneous and the result unpredictable. It is better to use the viscosity from the range that most closely approximates the desired value.

Is this silicone suitable for other uses within the slot car?

It is specifically formulated for differentials. For other lubrication points in the car (axles, bearings, gears), there are specific products with different viscosities and bases, more suitable for each function.

Silicone oil 30000CPS specially formulated for slot car differentials. High viscosity rating provides increased locking effect for improved rear traction, ideal for tight and slow-corner circuits. Compatible with standard differential components from major slot car brands. MP012-30000 reference from the specialist differential silicone range — a key tuning tool for club racers and serious hobbyists looking to fine-tune their car's handling balance.