DOT 4 brake fluid for car, bakkie and motorcycle brake and clutch systems. Brake fluid is hygroscopic, meaning it pulls moisture out of the air over time, and that water drops the boiling point. The symptom is a pedal that goes long and soft after repeated hard braking down a pass, because the fluid has boiled and you are now compressing vapour instead of liquid.

Replace it every two years or as your handbook specifies, regardless of mileage, and never top up from a bottle that has been open on a shelf. Keep it off paintwork, since it strips it. Nationwide delivery across South Africa.