Tachometer - Lexus LS400 Owner's Manual

D Idling for a long period with the air conditioning on in
stop−and−go traffic.
D Towing a trailer.
NOTICE
D Do not remove the thermostat in the engine cooling system as
this may cause the engine to overheat. The thermostat is
designed to control the flow of coolant to keep the
temperature of the engine within the specified operating
range.
D Do not continue driving with an overheated engine. See "If
your vehicle overheats" on page 196.
GAUGES, METERS AND SERVICE REMINDER INDICATORS

TACHOMETER

13L003−1
The tachometer indicates engine speed in thousands of rpm
(revolutions per minute). Use it while driving to prevent engine
overrevving.
Driving with the engine running too fast causes excessive engine
wear and poor fuel economy. Remember, in most cases the slower
the engine speed, the greater the fuel economy.
NOTICE
Do not let the indicator needle get into the red zone. This may
cause severe engine damage.
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