Brake Fluid
Use brake fluid approved to MB 331.0, such as Mopar part number 0454925AC, or a DOT 4 brake fluid with: minimum dry boiling point (ERBP) 500°F, minimum wet boiling point (WERBP) 356°F, maximum viscosity 1500 mm 2/s, conforming to FMVSS 116 and ISO 4925.