Notes: Suitable for easy bleeding of brake and clutch systems with an ABS system When changing oil for vehicles with ABS system, the pressure should be controlled at 1bar,otherwise the brake master cylinder will be damaged if the pressure is too high. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. Large reservoir means reduced risk of running the system dry during bleeding process or complete fluid change. The machine is suitable for oil change operation of automotive hydraulic brakes and large vehicle hydraulic clutches. This machine with gas storage device is driven by compressed air so several oil changes can be done in one gas charging. .