Does the 2011 Kia Optima take premium or regular gas?

The EPA lists the 2011 Kia Optima 2.4L 4-cyl, Automatic 6-spd, FWD as taking regular. Combined MPG is 27, and at today's gas prices that's about $2,111 a year in fuel.

← all 2011 Kia Optima trims

2011 Kia Optima — 2.4L 4-cyl, Automatic 6-spd, FWD

This 2011 Kia Optima (2.4L 4-cyl, Automatic 6-spd, FWD) takes regular (87-octane) gasoline. REGULAR

MPG combined (23 city / 33 hwy)

$2,111

est. fuel cost / year (today’s prices, 15k mi)

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tailpipe CO₂

At today's AAA national average price ($3.80/gal, 2026-07-05) — the EPA's own price/date assumption isn't exposed in the public dataset, so we recompute this from the EPA's MPG figure and a sourced current price.

EPA updated its fuel-economy equations again for model year 2017 — mostly affecting hybrids and turbocharged engines — and recalculated 2011-2016 ratings to match, in some cases 1-2 MPG lower. The number above already reflects that update.

Other 2011 Kia Optima trims

Trim	Fuel	MPG	Fuel/yr
2.4L 4-cyl, 6-spd manual, FWD	REGULAR	27	$2,111
2.0L 4-cyl, Automatic 6-spd, FWD	REGULAR	26	$2,192

EPA fuel type: Regular · class: Midsize Cars · engine: 2.4L 4-cyl · transmission: Automatic 6-spd · drive: FWD · MPG retrieved 2026-07-24.