See also:

Recommended lubricants and capacities
To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct lubricants also help promote engine efficiency that results in improv ...

Smart key
Smart key With a smart key, you can lock or unlock a door (and trunk) and even start the engine without inserting the key. The functions of buttons on a smart key are similar to the remote keyl ...

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 ...