Lexus GS300 1998 Owner's Manual page 287

STARTING AND DRIVING
With the selector lever in "L", the transmission is engaged in
the first gear.
NOTICE
D Be careful not to overrev the engine. Watch the
tachometer to keep engine rpm from going into the red
zone. The approximate maximum allowable speed for
each position is given below for your reference:
GS400
300
km/h (mph)
/h (mph)
"3" 153 (95)
81)
"2" 100 (62)
53)
"L" 65 (40)
34)
D Do not continue hill climbing or hard towing for a long
time in the "3", "2" or "L" position. This may cause
severe automatic transmission
overheating. To prevent such damage, "4" position
should be used in hill climbing or hard towing.
274
G S
km
130 (
85 (
55 (
damage from