Brake Fluid: Service and Repair

Aluminum Master Cylinder:

NOTES:
- With disc brakes, fluid level can be expected to fall as the brake pads wear.
- Check master cylinder fluid level twice annually.
- Master cylinder reservoirs are marked with the words "fill to bottom of rings".


1. Wipe caps and reservoir clean to prevent dirt and foreign matter from dropping into the reservoir.
2. Remove the caps to check the level.
- On aluminum master cylinder add DOT 3 fluid to bring the level to the bottom of the primary split ring.
- On the cast iron master cylinder, add DOT 3 fluid to bring the level to within a 1/4 inch of the top of reservoir.

CAUTION: Use fluid other than DOT 3 that may have a lower boiling point -- such as fluid identified as 7OR1 or unidentified as to specification -- could result in brake failure during long, hard braking.

CAUTION: Do not use fluid which has been stored in an unsealed container. Brake fluid stored in this manner will absorb moisture which could result in brake failure during long, hard braking.

CAUTION: Use of petroleum based fluids will result in seal damage.