2003 Honda S2000 Owner's Manual - Page 171

Brake and Clutch Fluid Check the fluid level in the reservoirs monthly. There are two reservoirs. They are: Brake fluid reservoir Clutch fluid reservoir The brake fluid should be replaced according to the time recommendation in the maintenance schedule. Always use Honda Heavy Duty Brake Fluid DOT 3. If it is not available, you should use only DOT 3 or DOT 4 fluid, from a sealed container, as a temporary replacement. However, the use of any non-Honda brake fluid can cause corrosion and decrease the life of the system. Have the brake system flushed and refilled with Honda Heavy Duty Brake Fluid DOT 3 as soon as possible. Brake fluid marked DOT 5 is not compatible with your car's braking system and can cause extensive damage. Brake System MAX MIN The fluid level should be between the MIN and MAX marks on the side of the reservoir. If the level is at or below the MIN mark, your brake system needs attention. Have the brake system inspected for leaks or worn brake pads. 174 Maintenance