Dot 5.1 Brake Fluid will guarantee beautiful brakes all the way from the chair lift to the bar. It has a super-high boiling point to keep brakes sharp and fade-free and will perform well on the longest, nastiest of Alpine descents. Tested at World Cup downhill races and white-knuckle summer Morzine laps. Don’t forget. Brake Fluid is good but it won’t work with badly bled brakes, rubbish rotors and pooped pads. Always keep your brakes tip top so Brake Fluid can work its magic. DOT 5.1 Brake fluid is a high-performance brake fluid for use in all DOT 3, DOT 4 and DOT 5.1 Glycol Ether based hydraulic brake systems. It must not be used in DOT 5 Silicone based or Mineral oil based hydraulic brake systems under any circumstances.