23 MPG combined won’t top fuel economy charts, but it’s a reasonable expectation for the 2017 Kia Cadenza with the 3.3L 6-cylinder engine. It’s not a hyper-efficient hybrid, but a comfortable, well-equipped large sedan with a smooth V6. Buyers choose the Cadenza for its spaciousness, value, and understated luxury, not how little gas it uses. They typically want a relaxed driving experience more than hypermiling.

City and highway performance

The EPA estimates the 2017 Kia Cadenza achieves 20 MPG in the city and 28 MPG on the highway. The city number reflects the realities of stop-and-go traffic and idling, scenarios where larger engines often struggle. The highway number, however, is more respectable. The Cadenza’s eight-speed automatic transmission plays a key role here because it allows the engine to cruise at lower RPMs for reduced fuel consumption on long journeys. The Cadenza’s powertrain focuses on comfort rather than outright performance and is tuned for smooth acceleration and relaxed cruising, further helping highway efficiency.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2017 Kia Cadenza at $1,900. This is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price at the time of testing. Remember that this is only an estimate, and your actual fuel costs may vary depending on your driving habits, the type of fuel you purchase, and where you live. However, it provides a useful benchmark for comparing the Cadenza’s fuel costs to other vehicles. For example, if gasoline prices rise significantly, this annual fuel cost will also increase proportionally.

Real-world expectations

While the EPA’s figures offer a standardized comparison, real-world MPG can vary. Some Cadenza drivers report their own fuel economy, suggesting slightly lower numbers, often averaging closer to 21-22 MPG combined. This difference can be attributed to factors such as aggressive driving, frequent short trips when the engine doesn’t reach its best operating temperature, and using accessories like air conditioning. Careful driving habits and consistent maintenance can help you get closer to the EPA estimates, but expecting to constantly exceed them may be unrealistic.

How it compares

The 2017 Kia Cadenza’s fuel economy places it roughly in the middle of its competitive set. The Toyota Avalon, a benchmark in the large sedan segment, achieves an EPA-estimated 24 MPG combined with its V6 engine. The Buick LaCrosse, another comfortable cruiser, posts similar numbers, around 25 MPG combined, for its V6 models. However, the Chrysler 300, with its available 5.7L Hemi V8, sees lower numbers, around 19 MPG combined. While the Cadenza sits near the bottom, it wins out on reliability, warranty, and low starting price. Buyers who want all all Kia fuel economy data should not overlook the Niro SUV, although it is not a large sedan like the Cadenza. When looking at CADENZA MPG across all years, look for engine choices as they can impact MPG. The importance of this comparison depends heavily on buyer priorities. Someone only focused on fuel efficiency might consider a smaller, more economical car. However, those prioritizing the Cadenza’s blend of size, features, and value will likely find its fuel economy acceptable.

Tips to maximize efficiency

Gentle acceleration and smooth braking are key to maximizing fuel efficiency in the Cadenza. The 3.3L V6 responds well to a light foot, and avoiding hard starts and stops can significantly reduce fuel consumption. Anticipate traffic flow and maintain a steady speed whenever possible. This is especially important in city driving, where frequent acceleration and braking can quickly diminish MPG.

Regular maintenance, particularly tire inflation and oil changes, can also improve fuel economy. Ensure that your tires are inflated to the recommended pressure because underinflated tires create more rolling resistance, which drags down MPG. Using the recommended oil viscosity helps the engine run smoothly and efficiently.

Minimize idling whenever possible. Letting the engine idle for extended periods wastes fuel, especially in modern cars. If you’re stopped for more than a minute or two, it’s generally more fuel-efficient to turn off the engine and restart it when you’re ready to go. This is particularly relevant for Cadenza drivers who face stop-and-go traffic.

Use cruise control on the highway to maintain a consistent speed. Cruise control helps to prevent unnecessary acceleration and deceleration, which can improve fuel economy on long drives. The Cadenza’s smooth ride and quiet cabin make it easy to maintain a steady speed manually and cruise control provides an extra layer of consistency and efficiency.

Reduce the use of accessories like air conditioning, especially on shorter trips. While air conditioning is essential in hot weather, it puts a significant load on the engine and reduces fuel economy. Consider using the fan or opening windows when possible to reduce the load on the AC system, especially during mild weather.