See also:

Gauges
Speedometer The speedometer indicates the forward speed of the vehicle. Tachometer The tachometer indicates the approximate number of engine revolutions per minute (rpm). Use the tachometer to ...

Economical operation
Your vehicle's fuel economy depends mainly on your style of driving, where you drive and when you drive. Each of these factors affects how many miles (kilometers) you can get from a gallon (liter ...

POWER AND FUEL-ECONOMY ARE UP TO PAR
That description might have you thinking the Optima has all sorts of power. True, the upgraded 2.4-liter four-cylinder gets added power for ’09 with 175hp and 169 ft-lbs of torque, but it’s no ...