Definition
DOT 4 and DOT 5.1 fluids resist fade better under track heat.
Fluid should be flushed periodically because it absorbs moisture over time.
Brakes
Hydraulic fluid transmitting pedal force; rated by dry and wet boiling points.
DOT 4 and DOT 5.1 fluids resist fade better under track heat.
Fluid should be flushed periodically because it absorbs moisture over time.
Category: Brakes · Updated August 31, 2026