As the brake pads wear, the level of brake fluid in the reservoir gradually decreases.
There is no need to compensate for this drop: the level will be restored at the next brake pad change. At the same time, the level should not be allowed to fall below the minimum allowable mark.
Mixing two incompatible brake fluids in a hydraulic actuator can lead to significant fluid leaks, mainly due to deformation of the seals.
To prevent this, use only brake fluids that have been tested and approved by the technical department and comply with SAE J 1703-DOT4.
For optimum operating conditions of the brake system of RENAULT vehicles, it is recommended to use low viscosity brake fluids at low temperatures (no more than 750 mm/s at 40°C).