DOT 4 fluid has a higher boiling point that DOT 3 fluid
DOT 4 fluid has a lower boiling point than DOT 3 fluid
DOT 3 and DOT 4 fluids have the same boiling point, but DOT 4 fluid has a longer service life
DOT 4 fluid is more resistance to freezing than DOT 3 fluid
brake drags
brake fades
vapour locking occurs in the brake lines
antilock braking system malfunctions
trapping
tapping
bleeding
cleaning
stopping distance becomes extremely long
front tyres skid across the road surface, and the vehicle spins around
rear tyres skid across the road surface, and the vehicle spins around
driver loses control over the steering, and the vehicle continues moving in its current direction
reduces the stopping distance
minimizes the brake fade
maintains directional control during braking by preventing the wheels from locking
prevents nose dives during braking and thereby postpones locking of the wheels