What type of maintenance task is brake fluid replacement categorized as?

Brake fluid replacement is categorized as preventative maintenance because it aims to enhance the longevity and performance of the braking system. By regularly replacing the brake fluid, you help prevent potential issues such as moisture buildup and brake fluid contamination, which can lead to reduced braking performance or failure.

Preventative maintenance actions are taken to reduce the likelihood of system failures, ensuring components operate efficiently and safely. In the case of brake fluid, maintaining proper fluid levels and quality is essential for brake functionality and vehicle safety.

While routine maintenance could also describe brake fluid replacement, preventative maintenance emphasizes the proactive aspect of preventing future problems, making it the most fitting classification for this task.