Fingers: If the width of a human finger is 2.2 cm (7â8 in), then a million fingers lined up would cover a distance of 22 km (14 mi). If a person walks at a speed of 4 km/h (2.5 mph), it would take them approximately five and a half hours to reach the end of the fingers.
The rotors on a vehicle can last anywhere from 30,000 to 70,000 miles and sometimes more. A licensed mechanic, such as one from YourMechanic, can evaluate the rotors and advise you on their status; they may not need to be changed as often as the brake pads. Like brake pads, they should be replaced in pairs.
The average person drives anywhere from ten to fifteen thousand miles per year, and they use their brakes about 75,000 times. Thatâs a lot of wear and tear on your carâs brakes, and changing the brake fluid is only one way to keep your car running smoothly. Why itâs Important to Change Your Brake Fluid. Almost half of all cars and small trucks that have been on the United Statesâ roads for ten years or more have never had their brake fluid changed, which is a problem.