Oil
- Viscosity
- 5W-20
- Oil type
- Full Synthetic
- Capacity (with filter)
- 5.1 qt
- Capacity (without filter)
- 4.8 qt
OEM notes: API SP
2011 Kia Optima Maintenance & Specs
Everything you need to maintain your 2011 Kia Optima — oil specs, maintenance schedule, recalls, and more.
The 2011 Kia Optima takes 5W-20 Full Synthetic with a total capacity of 5.1 quarts (filter included). Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.
Data last verified: May 3, 2026
Oil
5W-20
Full Synthetic
Buy on Amazon →
Capacity
5.1 qt
with filter
OEM spec: API SP
Quick DIY Tips for the 2011 Kia Optima
- Always use 5W-20 Full Synthetic as specified by Kia — using the wrong viscosity can void your powertrain warranty.
- Check the maintenance schedule below for your next service interval.
Filter options
No filter cross-references added yet.
Drain bolt & hardware
Drain bolt specs not yet added.
Maintenance schedule
Select a mileage interval above to see scheduled maintenance items.
Estimated Current Value
Original MSRP
$30,000
Private Party Value
$4,845 – $5,355
Dealer Retail Value
$5,610 – $6,375
Trade-In Value
$4,335 – $4,845
Depreciation
83%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Technical Service Bulletins218
Torque specifications
- lug nut
- 80 ft-lbs / 108.5 Nm
- spark plug
- 18 ft-lbs / 24.4 Nm
14mm thread, aluminum head
Save by doing it yourself
A shop typically charges $70–$140 for this service. Buy the parts yourself and save.
Shop Parts for the Kia Optima
Find oil, filters, and maintenance parts for the 2011 Kia Optima on Amazon.
Tools & supplies
Step-by-step guide
Detailed walkthrough with tips for first-timers.
Read guide →How often to change oil
Intervals, severe service, and what your car needs.
Read guide →Synthetic vs. conventional
Which oil type is right for your engine and budget.
Read guide →Have info for this vehicle?
Help fellow owners — submit specs from your owner's manual.
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