Refilling Brake Fluid - Lexus GS300 1998 Owner's Manual

To check the fluid level, simply look at the see–through
reservoir. The level should be between the "MAX" and
"MIN" lines on the tank.
It is normal for the brake fluid level to go down slightly as the
brake pads wear or when the fluid level in the accumulator is
high.
If the reservoir needs frequent refilling, it may indicate a
serious mechanical problem.
If the level is low, add FMVSS No.116 DOT 3 or SAE
J1703 brake fluid to the brake reservoir.

Refilling brake fluid:

1. Turn the ignition switch off.
2. Depress the brake pedal more than 40 times.
3. Remove the reservoir cover by hand. Add brake fluid up
to the "MAX" line.
CAUTION
Take care when filling the reservoir because brake fluid can
harm your eyes and damage painted surfaces. If fluid gets in
your eyes, flush your eyes with clean water.
If you do not follow the procedure above, the reservoir may
overflow.
Use only newly opened brake fluid. Once opened, brake fluid
absorbs moisture from the air, and excess moisture can cause
a dangerous loss of braking efficiency.
CHASSIS
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