Lead Foot Equall/Not Equall Need Brake Job
October 15, 2009 3:35 PM Subscribe
Theoretical brake wear: Do brake pads wear out faster, slower, or at the same rate if you brake later and harder than normal?
posted by Liver to travel & transportation (17 answers total)
Let's say you have two drivers, Alice and Bill, each with their own identical car.
Let's say Alice is a professional race car driver and Bill is a normal vanilla defensive driver. Alice drives her regular car at legal speeds on the open road, but because of her professional skill and training, tends to brake much later and with greater foot pressure than Bill would making the same journey.
For instance, while traveling 60 MPH, they both see an approaching red light. Bill applies the break gradually and takes 1000 ft to come to a stop. Alice doesn't apply the break until she is closer to the light, and applies more foot pressure, coming to a stop in 500 ft.
Over the long run, does Alice need new brake pads before Bill, or do they both need new brake pads at roughly the same time?
I can see it going either way. Either Alice needs pads sooner because she brakes harder, applying more force to the pads, or Alice and Bill both wear pads at the same rate, because they are doing the same amount brake use, only with different short-term usage patterns.
Or maybe I'm missing something entirely and you can help me understand.