Motul RBF 600 is 100% synthetic DOT 4 fluid for hydraulic-actuated brake and clutch systems. With it's elevated boiling point of 312°C / 593°F, Motul is specifically designed to resist the high temperatures of racing brakes and clutch systems. Price is for .5/liter.
Note:
Check your manufacturer's specifications in the owners manual for your vehicle's specific requirements.