Toyota FJ CRUISER Owner's Manual page 407

4-3. Do-it-yourself maintenance
NOTICE
If you remove the air cleaner
■
Driving with the air cleaner removed may cause excessive engine wear due
to dirt in the air.
■ If the fluid level is low or high
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 problem.
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