Kia
Fuel economy & running costsGasoline
23MPGcombined
20city
27highway
A year of fuel$2,900
CO₂ from the tailpipe386.4 g/mi
Figures from the EPA label (fueleconomy.gov), the same as on the car's window sticker.
Against the 908 kia cars
Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.
Summary
2003 Kia Optima by Kia. The figures below are from US EPA fueleconomy.gov, with the page each one came from.
Details
- Model year
- 2003fueleconomy.gov · 3 Oct 2026
Efficiency
- Combined MPG
- 23fueleconomy.gov · 3 Oct 2026
- City MPG
- 20fueleconomy.gov · 3 Oct 2026
- Highway MPG
- 27fueleconomy.gov · 3 Oct 2026
Running cost
- Annual fuel cost
- $2,900fueleconomy.gov · 3 Oct 2026
- CO₂ (tailpipe)
- 386.4 g/mifueleconomy.gov · 3 Oct 2026
Car
- Body
- Carfueleconomy.gov · 3 Oct 2026
- EPA class
- Midsize Carsfueleconomy.gov · 3 Oct 2026
- Drive
- Front-Wheel Drivefueleconomy.gov · 3 Oct 2026
Powertrain
- Engine
- 2.4 L 4-cylfueleconomy.gov · 3 Oct 2026
- Transmission
- Manual 5-spdfueleconomy.gov · 3 Oct 2026
- Fuel
- Gasolinefueleconomy.gov · 3 Oct 2026
More kia cars
See the list
#1 2027 · Kia Carnival 21Combined MPG $3,200Fuel / year #2 2027 · Kia Carnival Hybrid 33Combined MPG $2,050Fuel / year 
#3 2027 · Kia EV3 Long Range AWD 280 miEPA range $750Fuel / year #4 2027 · Kia EV3 Long Range FWD 321 miEPA range $650Fuel / year #5 2027 · Kia EV3 Long Range GT AWD 280 miEPA range $750Fuel / year #6 2027 · Kia EV3 Standard Range FWD 221 miEPA range $650Fuel / year Listed on CarCody
- Kia Cars: Every Model and Year With MPG908 listed
Sources
- fueleconomy.gov/feg/noframes/18672.shtml· checked 3 Oct 2026