1999-2004 Suzuki King Quad LT-300 300F ATV Factory Service Manual, Page 29Get this manual
PERIODIC MAINTENANCE
A WARNING
The brake system of this vehicle is filled with glycol-based brake fluidDo not use or mix different types of fluid such as silicone-based and petroleum-based fluidsDo not use any brake fluid taken from old, used or unsealed containersNever reuse brake fluid left over from the last servicing or stored for long period of timeBrake fluid, if it leaks, will interfere with safe running and immediately discolor painted surfacesCheck the brake hoses and hose joints for cracks and oil leakage before riding