The new standard in high-performance brake fluid; mix with dot 3, 4 and 5.1 (not dot 5); super high boiling points: Wash 617 degrees F, wet 399 degrees F Motul RBF 660 Pro Racing Brake Fluid “1/2L 847205/101667 Motul RBF 660 Pro Racing Brake Fluid “1/2L 847205/101667.