Car crash.

Be careful where you apply brake lubricant -- improper application can have serious consequences.


Disk Brake Lubrication Points

Due to their shape, disk brakes work a little differently than drum brakes -- and therefore have slightly different lubrication points. Here are a few do's and don'ts to keep in mind as you work on your disk brakes.

  • Because it's so important, here's that reminder again: Don't ever put lubricant on the rotors or the insides of the pads where they contact the rotors. This will kill your brakes and cause you major problems on the road.
  • Lubricate the few small screws on top and bottom of the caliper that hold it in place.
  • The bushing that moves the caliper itself back and forth should be properly lubricated. If not, it can freeze up and fail to disengage the brakes properly. This will affect your gas mileage and cause excess wear on your brakes.
  • Where the caliper rides on the frame along the rotor, you may find some wear marks. Lightly sand those with a grinder and coat with lubricant.
  • Anywhere metal slides along metal -- such as where the pads slide inside the caliper housing -- should be lubricated.
  • Again, always use dry film lubricant, except in places where the lube might contact rubber or plastic seals.

Now that you know where to apply brake lubricant, let's learn how to apply it. We'll discuss that on the next page.