Lexus GS300 1998 Owner's Manual page 400

CHASSIS
63G006–1
" 1 If hot O.K.
2 If hot add 3 If cold O.K.
4 If cold add
Clean all dirt off the reservoir and look at the fluid level. If
the fluid is cold, the level should be in the "COLD" range.
Similarly, if it is hot, the fluid level should be in the "HOT"
range. If the level is at the low side of the appropriate range,
R
add automatic transmission fluid DEXRON II or III to bring
the level within the range.
To remove the filler cap, turn it counterclockwise and lift up.
To reinstall it, turn it clockwise. After replacing the filler cap,
visually check the steering box case, vane pump and hose
connections for leaks or damage.
CAUTION
The reservoir may be hot so be careful not to burn yourself.
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