2004 · Midsize Car · Gas

2004 Kia Optima MPG & fuel economy

The 2004 Kia Optima is a midsize car offered in 4 EPA-rated configurations. The most efficient version returns 23 MPG combined (20 city / 27 highway) on regular gasoline. Across the lineup, combined ratings range from 21 to 23 MPG. Efficiency is unchanged from the 2003 model. Among 39 midsize cars rated for 2004, it ranks 10th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,022 a year to fuel.

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Combined 23 MPG 20 MPG city · 27 MPG hwy

Driving range — not published for this model

Your fuel cost $2,022 15,000 mi/yr · $13.48 per 100 mi

Class rank, 2004 #10 of 39 Midsize Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Miles per year Regular gas $/gal

Fuel average

The 2004 Kia Optima's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 11.5 km/L on the highway.

	MPG	km/L	L/100 km
City	20	8.5	11.8
Highway	27	11.5	8.7
Combined	23	9.8	10.2

How it ranks among 2004 Midsize Cars

Full class ranking →

1Toyota Prius46 MPG $1,011
2Honda Accord26 MPG $1,788
3Chevrolet Malibu25 MPG $1,860
4Saturn L30025 MPG $1,860
5Chevrolet Classic25 MPG $1,860
···
10Kia Optima23 MPG $2,022
···
39Bentley Arnage11 MPG $5,386

2004 OptimaOther midsize carsClass median: $2,325/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

Optima MPG across model years

Full history →

4 EPA-rated configurations

Configuration	Type	City	Hwy	Combined	Range	Your cost / yr
FWD · 2.4L 4-cyl · 5-speed manual Optima	Gas	20 MPG	27 MPG	23 MPG	—	$2,022
FWD · 2.4L 4-cyl · 4-speed automatic Optima	Gas	19 MPG	27 MPG	22 MPG	—	$2,114
FWD · 2.7L 6-cyl · 4-speed automatic Optima	Gas	18 MPG	25 MPG	21 MPG	—	$2,214
FWD · 2.7L 6-cyl · 5-speed manual Optima	Gas	18 MPG	26 MPG	21 MPG	—	$2,214

Specs (most efficient configuration)

Fuel: Regular gasoline
Engine / motor: 2.4L 4-cyl
Transmission: 5-speed manual
Drivetrain: FWD
Passenger volume: 100 cu ft
Cargo volume: 13 cu ft
Tailpipe CO₂: 386 g/mi

2004 Kia Optima vs. rivals

vs Hyundai Sonata 23 MPG · $2,022/yr Same fuel cost vs Mitsubishi Galant 23 MPG · $2,022/yr Same fuel cost vs Nissan Altima 23 MPG · $2,022/yr Same fuel cost vs Chevrolet Monte Carlo 22 MPG · $2,114/yr Optima saves $92/yr vs Chevrolet Malibu 25 MPG · $1,860/yr Malibu saves $162/yr vs Chevrolet Classic 25 MPG · $1,860/yr Classic saves $162/yr vs Volkswagen Passat Diesel 27 MPG · $2,056/yr Optima saves $34/yr vs Mazda 6 24 MPG · $1,938/yr 6 saves $84/yr vs Saturn L300 25 MPG · $1,860/yr L300 saves $162/yr

Compare the 2004 Optima

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Frequently asked questions

What is the gas mileage of the 2004 Kia Optima?

Up to 23 MPG combined (20 city / 27 highway); ratings range from 21 to 23 MPG depending on configuration.

What fuel does the 2004 Kia Optima use?

Regular gasoline.

What is the fuel average in km/L for the 2004 Kia Optima?