2010 KIA Optima oil viscosity

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Driving your vehicle
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Use high quality ethylene glycol
coolant
Your vehicle is delivered with high quality
ethylene glycol coolant in the cooling
system. It is the only type of coolant that
should be used because it helps prevent
corrosion in the cooling system, lubri-
cates the water pump and prevents
freezing. Be sure to replace or replenish
your coolant in accordance with the
maintenance schedule in section 7.
Before winter, have your coolant tested to
assure that its freezing point is sufficient
for the temperatures anticipated during
the winter.
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Check battery and cables
Winter puts additional burdens on the
battery system. Visually inspect the bat-
tery and cables as described in section
7. The level of charge in your battery can
be checked by an authorized KIA dealer
or a service station.
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Change to "winter weight" oil if
necessary
In some climates it is recommended that
a lower viscosity "winter weight" oil be
used during cold weather. See section 8
for recommendations. If you aren't sure
what weight oil you should use, consult
an authorized KIA dealer.
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Check spark plugs and ignition
system
Inspect your spark plugs as described in
section 7 and replace them if necessary.
Also check all ignition wiring and compo-
nents to be sure they are not cracked,
worn or damaged in any way.
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To keep locks from freezing
To keep the locks from freezing, squirt an
approved de-icer fluid or glycerine into
the key opening. If a lock is covered with
ice, squirt it with an approved de-icing
fluid to remove the ice. If the lock is
frozen internally, you may be able to thaw
it out by using a heated key. Handle the
heated key with care to avoid injury.
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Use approved window washer
anti-freeze in system
To keep the water in the window washer
system from freezing, add an approved
window washer anti-freeze solution in
accordance with instructions on the con-
tainer. Window washer anti-freeze is
available from an authorized KIA dealer
and most auto parts outlets. Do not use
engine coolant or other types of anti-
freeze as these may damage the paint
finish.

Specifications, Consumer information
48
RECOMMENDED LUBRICANTS AND CAPACITIES
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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 improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
*1Refer to the recommended SAE viscosity numbers on the next page.
*2Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econo my by reducing
the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving, but in a year’s
time, they can offer significant cost and energy savings.
*3If the API service SM engine oil is not available in your country, you are able to use API service SL.
Lubricant Volume Classification
4.3 l (4.5 US qt.)
4.5 l (4.7 US qt.)
Manual transaxle fluid 1.75 l(1.85 US qt.) API Service GL-4 (SAE 75W-85, fill for-life)
Automatic transaxle fluid 7.8
l (8.2 US qt.)
DIAMOND ATF SP-III, SK ATF SP-III
9.5 l (10.0 US qt.)
Power steering 0.8 l (0.8 US qt.) PSF-4
6.4~6.9 l(6.8~7.3 US qt.) Mixture of antifreeze and water (Ethylene glycol
Coolant 8.2~8.3 l(8.7~8.8 US qt.) base coolant for aluminum radiator)
Brake/clutch fluid 0.9 l(1.0 US qt.) FMVSS116 DOT-3 or DOT-4
Fuel 62 l (16.4 US gal.) -
Engine oil *1*2
(drain and refill) API Service SM or above*
3,
ILSAC GF-4 or above
2.4L
2.7L 2.4L
2.7L
2.4L
2.7L

85
Specifications, Consumer information
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Recommended SAE viscosity
number
Engine oil viscosity (thickness) has an
effect on fuel economy and cold weather
operating (engine start and engine oil
flowability). Lower viscosity engine oils
can provide better fuel economy and cold
weather performance, however, higher
viscosity engine oils are required for sat-
isfactory lubrication in hot weather. Using
oils of any viscosity other than those rec-
ommended could result in engine dam-
age.When choosing an oil, consider the range
of temperature your vehicle will be oper-
ated in before the next oil change.
Proceed to select the recommended oil
viscosity from the chart.
CAUTION
Always be sure to clean the area
around any filler plug, drain plug, ordipstick before checking or drain-ing any lubricant. This is especiallyimportant in dusty or sandy areasand when the vehicle is used onunpaved roads. Cleaning the plugand dipstick areas will prevent dirt and grit from entering the engineand other mechanisms that couldbe damaged.
Temperature Range for SAE Viscosity Numbers
Temperature
Engine Oil *
1
°C
(°F)-30 -20 -10 0 10 20 30 40 50 -10 0 20 40 60 80 100 120
1. For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-
20 (API SM / ILSAC GF-4 or above). However, if the engine oil is not available in your coun-
try, select the proper engine oil using the engine oil viscosity chart.
10W-30
5W-20, 5W-30