Engine Coolant Temperature Gauge - Ford 1999 Taurus Owner's Manual

Tachometer
The tachometer
The tachometer displays the approximate engine
revolutions per minute (rpm), or how fast the
engine is running.
You can drive your vehicle at most rpm points on
the tachometer but you must stay out of the red
zone.

Engine Coolant Temperature Gauge

This gauge indicates the temperature of the engine
coolant, not the coolant level. If the coolant is not
at its proper level or mixture, the gauge indication
will not be accurate.
The engine coolant temperature gauge
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