Tachometer - Lexus 2004 LS430 Owner's Manual

GAUGES, METERS AND SERVICE REMINDER INDICATORS
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 401.
80

TACHOMETER

13L144
The tachometer indicates engine speed in thousands of
rpm (revolutions per minute). Use it while driving to
prevent engine over-revving.
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.