2018 Kia Optima specs
Every verified maintenance spec for the 2018 Kia Optima in one place - tap any part for full details, replacements, and where to buy.
Battery
Group 94R, 730-850 CCA (AGM)
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Engine oil
0W-30/10W-40/5W-30, 4.3 qt with a filter change
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Coolant
6.2-8.1 quarts cooling-system capacity
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Wiper blades
26" driver + 18" passenger
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Headlight bulbs
Low beam 9005
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Air filters
Cabin 97133C1010, engine 28113C1500
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All specs are for distinct year/make/model configurations, each checked against a cited source. Trims and engines vary - confirm against your vehicle before buying.