28 MPG combined is a respectable figure for the 2017 Kia Optima 2.4L, a mid-size sedan that prioritizes comfort and value over outright sportiness. This isn’t a hybrid, nor is it trying to be. Instead, the Optima 2.4L offers a practical blend of efficiency and everyday usability, perfectly suited for families, commuters, and anyone seeking a comfortable and affordable ride.

City and highway performance

The Optima 2.4L’s EPA ratings break down to 24 MPG in the city and 34 MPG on the highway. The city figure reflects the demands of stop-and-go traffic, where the 2.4-liter engine works harder and the automatic transmission cycles through gears more frequently. The highway number is more impressive, showcasing the engine’s efficiency during steady-state cruising. The six-speed automatic transmission (S6) also plays a role here, allowing the engine to operate at lower RPMs for improved fuel economy at higher speeds. The Optima is not particularly quick, but the engine provides adequate power for merging and passing, provided you plan ahead. The priority for the buyer here is smooth, predictable performance; the EPA numbers reflect that.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Kia Optima 2.4L at $1,550. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this is an estimate, and your actual fuel costs may vary depending on your driving habits, local fuel prices, and the type of fuel you use. The assumptions built into its calculation are important to understand. If you drive significantly more or less than 15,000 miles per year, or if fuel prices in your area are substantially higher or lower than the national average, your real-world fuel costs will differ. The EPA publishes all Kia fuel economy data, including historical figures, which could prove useful in budgeting.

Real-world expectations

While EPA ratings provide a useful benchmark, real-world fuel economy often differs. Factors like driving style, traffic conditions, and vehicle maintenance can all impact your MPG. Drivers who frequently accelerate hard, brake aggressively, or spend a lot of time idling in traffic will likely see lower fuel economy than the EPA estimates. Conversely, those who drive conservatively and maintain their vehicle properly may achieve better results. Check out the OPTIMA MPG across all years to get a sense of how user experience varies. Remember that tire pressure can also have an effect. Keeping your tires properly inflated will reduce rolling resistance and improve fuel efficiency. The Optima 2.4L is relatively sensitive to driving style; treat it gently and it will reward you at the pump.

How it compares

The 2017 Kia Optima 2.4L’s fuel economy stacks up competitively against other mid-size sedans in its class. For example, the 2017 Honda Accord 2.4L (non-hybrid) achieves an EPA-estimated 27 MPG combined (23 city / 32 highway), slightly less than the Optima. The Toyota Camry 2.5L from the same year manages a near-identical 28 MPG combined. The Hyundai Sonata 2.4L, sharing a platform and engine with the Optima, also posts 28 MPG combined. Where the Optima distinguishes itself is often in its value. Buyers of the Optima 2.4L are typically seeking a well-equipped, comfortable sedan at a reasonable price, and its fuel economy, while not class-leading, is certainly acceptable within that context. The Nissan Altima 2.5 SL, with its 27 MPG combined, represents another close competitor, but its continuously variable transmission (CVT) delivers a noticeably different driving experience. These comparisons suggest the Optima 2.4L is right in the mix with its peer set.

Tips to maximize efficiency

Gentle acceleration is key to maximizing fuel economy in the 2017 Optima 2.4L. Avoid aggressive starts and try to maintain a steady speed. The engine responds best to smooth, gradual inputs, allowing the transmission to shift efficiently and keep the engine in its optimal RPM range. Consider using cruise control when appropriate, especially on the highway, to maintain a consistent speed and avoid unnecessary acceleration and deceleration.

Regular maintenance is crucial for preserving fuel economy over the long term. Ensure that your Optima receives scheduled oil changes, tire rotations, and air filter replacements. A well-maintained engine runs more efficiently, and properly inflated tires reduce rolling resistance. Small maintenance tasks can have a significant impact on your MPG over time. Check not only the tire pressure but also the condition; worn or damaged tires will negatively impact economy.

Minimize idling time whenever possible. Letting your engine idle for extended periods consumes fuel without moving the vehicle. If you anticipate a wait of more than a minute or two, turn off the engine. Restarting is generally more fuel-efficient than prolonged idling. While the Optima 2.4L does not have an auto stop-start feature, your driving habits can still add up to substantial savings.

Reduce unnecessary weight. Carrying excessive cargo in your trunk or on your roof rack can negatively impact fuel economy. Remove any items you don’t need to lighten the load and improve your MPG. Even small amounts of extra weight can add up, especially during city driving where frequent acceleration and braking are required.