Kia Optima S Information

Fuel Efficiency · MPG

Fuel Efficiency

Government regulators estimate the fuel cost of the 2018 Optima S to be $1,500 per year. This estimate is based on 15,000 miles driven, 55% city driving and 45% highway driving, and regular gasoline.

Compared to other vehicles, you spend $250 more over 5 years compared to an average vehicle.

The Optima S consumes about 13 barrels of petroleum per year, according to the standard estimate of 15,000 miles driven. Most of the world's petroleum comes from countries like Russia, Saudi Arabia, the U.S., and Iraq.

The Optima S emits 340 grams of CO2 per mile, or roughly 5,100,000 grams per year. To put this into perspective, a normal tree absorbs about 21,000 grams of CO2 per year, so about 243 trees would offset these emissions. The Optima S does not have start-stop technology.

Vehicle Model Combined MPG Highway MPG City MPG
2018 Kia Optima S 26 32 23

MPG breakdown by model options

The Kia Optima S has 1 different model options on record with the EPA since 2018. For the most accurate MPG estimates, find your exact model below.

Vehicle Model Combined MPG Highway MPG City MPG
2018 4-dr, Automatic (S6), 4-cyl, 2.4 L 26 32 23