Kia Optima
Kia Optima

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Suggestions for 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 kilometers (miles) you can get
from liter (a gallon ...
Engine coolant
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the factory.
Check the antifreeze protection and
coolant level at least once ...
If the engine overheats
If your temperature gauge indicates overheating,
you experience a loss of power,
or hear loud pinging or knocking, the
engine is probably too hot. If this happens,
you should:
1. Pull off the roa ...


