Motor break-in fluid 250ml

The motor break-in makes the difference: do it right from the start

A well-run motor responds better, lasts longer, and offers more consistent performance on track. This 250 ml break-in fluid from MB (reference MB-19060) is specifically designed to facilitate that process, allowing the motor to run under controlled conditions, with low voltage and without the wear caused by a dry start or full power.

Main features

• Format: 250 ml, sufficient for multiple break-in sessions with different motors.
• Function: lubricates and conditions the motor during break-in, reducing internal friction and aiding the settling of moving parts.
• Reusable: the fluid can be filtered to remove particles and reused in several sessions before needing to be completely replaced.

How to perform the break-in correctly

The process is simple but requires attention. The motor must be completely submerged in the fluid for the entire break-in session and run at low voltage, around 3 volts. We recommend using a regulated power supply, as it allows precise control of the voltage and amperage needed for the motor to run stably.

The duration of the break-in is not fixed: it depends on the condition and type of motor. For a motor that has not been used for a while, a few minutes of lubrication may suffice. For a new motor, the process may extend over several hours. It is advisable to work in stages, checking the motor's behaviour at each phase until a satisfactory result is achieved.

Maintenance of the fluid

With use, the fluid may darken due to the presence of metal particles and motor debris. This is normal and does not mean it should be discarded immediately: it can be filtered to separate the coarser particles and remain useful. After many sessions with different motors, it is advisable to completely replace it to ensure the effectiveness of the process.

Preparation before returning to the track

Once the break-in is complete, it is essential to ensure that the motor is completely dry, both inside and out, before mounting it in the car. Ideally, wait at least 12 hours after the break-in session and, if possible, perform a brief running session on track at a voltage higher than 3 volts to evacuate any remaining fluid. Mounting a wet motor can damage the car's electrical components.

Safety precautions

This fluid is harmful to health and should be handled with care:

• Avoid contact with skin. In case of contact, wash hands with soap and water immediately.
• Keep out of reach of children under any circumstances.
• Keep away from flames and heat sources.
• Use low and stable containers to avoid accidental spills.

Frequently asked questions

At what voltage should I run the motor during break-in?

A minimum voltage of around 3 volts is recommended. The important thing is that the motor runs stably and without excessive strain. A regulated power supply is the most convenient and safe option for controlling this parameter.

How long should I break in the motor?

There is no single time. For motors that have not been used for a while, a few minutes may suffice. For new motors, the process can last several hours. It is recommended to work in stages and assess the motor's behaviour throughout the process.

When should the fluid be changed?

When the fluid becomes dirty, it can be filtered and reused. It should only be completely replaced when, after many uses with different motors, it is no longer possible to maintain it in acceptable conditions through filtering.

Can I mount the motor in the car right after the break-in?

No. The motor must be completely dry before mounting it. Ideally, wait at least 12 hours and perform a brief running session on track at a voltage higher than 3 volts to ensure no fluid remains inside.

Is this product dangerous?

Yes, it should be handled with caution. It is harmful on contact with skin and should not be within reach of children. It should also not be exposed to heat sources or flames. Read and follow all safety instructions before use.

The MB-19060 motor break-in fluid (250 ml) is a specialist product designed for slot car motor preparation. It allows motors to be run-in at low voltage while fully submerged, reducing mechanical stress and improving long-term performance. Compatible with a wide range of slot car motors, it is reusable through filtering and is an essential tool for any serious slot car hobbyist looking to get the most out of their motors before hitting the track.