Buick RIVIERA 1993 Manual page 238

Brake Master Cylinder you'll have too much fluid when
you
get
new
brake
linines. You should add (or remove) brake fluid, as
U
your brake master cylinder
necessary, only when work is done on the brake
is here. It is filled with
hydraulic system.
DOT-3 brake fluid.
I
I
A
CAUTION:
If you have too much brake fluid, it can spill on
the engine. The fluid will burn if the engine is
hot enough. You or others could be burned, arr'
your vehicle could be damaged. Add brake flutu
only when work is done on the brake hydraulic
system.
When your brake fluid falls to a low level, your brake
There are only two reasons why the brake fluid level in light will on. See System Warning
your master cylinder might go down. The first is that the Light,'
in the Index,
brake fluid goes down to an acceptable level during
normal brake lining wear. When new linings are put in,
the fluid level goes back up. The other reason is that
fluid 'is leaking out of the brake system. If it is, you
should have your brake system fixed, since a leak means
that sooner or later your brakes won't work well, or
won't work at all. So, it isn't a good idea to "top off'
your brake fluid. Adding brake fluid won't correct a
leak. If you add fluid when your linings are worn, then
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