Kia · 2015
Rio Eco 1.6L 4-cyl
✓ EPA Verified
Regular Gasoline
Compact Cars
Front-Wheel Drive
City
27
MPG
Combined
31
MPG
Highway
36
MPG
Annual Fuel Cost
$1,400
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$750
saved per year
Class Comparison — Compact Cars
Top 31%
Better than 69 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 31 MPG
This vehicle
31 MPG
Class average
33 MPG
Class lowest
12 MPG
EPA Energy & Environment Scores
8
Energy Score
Out of 10
8
GHG Score
Out of 10
286 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine1.6L 4-cyl
TransmissionAutomatic (S6)
DriveFront-Wheel Drive
Fuel TypeRegular Gasoline
Vehicle ClassCompact Cars
Engine DescSIDI
Start-StopYes
EPA Vehicle ID35541

The 2015 Kia Rio Eco 1.6L 4-cyl gets 31 MPG combined. This figure is good for budget-conscious drivers who prioritize affordability. It’s a practical, dependable subcompact designed for daily commutes and urban errands, where fuel efficiency translates to savings. The target buyer wants a reliable and economical car that won’t break the bank, and they find the Rio Eco’s fuel economy acceptable.

City and highway performance

The EPA estimates the 2015 Kia Rio Eco gets 27 MPG in the city and 36 MPG on the highway. The city figure, while not class-leading, will be appreciated in stop-and-go traffic. The 1.6L engine, paired with a six-speed automatic transmission, provides adequate power for urban environments without sacrificing fuel efficiency. On the highway, the Rio Eco maintains impressive mileage during longer trips, making it a viable option for occasional road trips where fuel costs add up.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2015 Kia Rio Eco is $1,400. This is based on driving 15,000 miles per year and using the national average fuel price. This is just an estimate, and real-world fuel costs can vary depending on driving habits, local fuel prices, and driving style. You can compare the Rio Eco against other vehicles in its class to see its potential for long-term cost savings, with $1,400 offering a useful benchmark.

Real-world expectations

While the EPA estimates provide a standardized benchmark, real-world MPG can vary. Factors like driving style, terrain, and weather conditions influence fuel consumption. Aggressive acceleration and frequent hard braking will reduce MPG. Gentle driving and consistent speeds will help you achieve numbers closer to the EPA estimates. Expect a deviation from the official figures, but with mindful driving, matching or exceeding the EPA combined MPG is possible.

How it compares

The 2015 Kia Rio Eco is competitive in the subcompact segment. For example, the Ford Fiesta SFE achieves a similar 31 MPG combined. The Honda Fit offers around 33 MPG combined. The Chevrolet Sonic generally falls slightly below the Rio Eco at around 30 MPG combined. The Rio Eco offers comparable mileage, but also consider features and cost. You can also see RIO MPG across all years in our data.

Tips to maximize efficiency

Anticipate traffic flow and avoid sudden acceleration or braking. The Rio Eco’s fuel efficiency is optimized when driven smoothly. By maintaining a steady speed and looking ahead to anticipate traffic lights and slowdowns, you can minimize unnecessary fuel consumption.

Maintain proper tire inflation. Underinflated tires increase rolling resistance, which forces the engine to work harder and decreases fuel efficiency. Check your tire pressure regularly and inflate them to the recommended pressure, which can be found on the sticker inside the driver’s side doorjamb. The correct tire pressure ensures optimal fuel economy and extends tire life.

Minimize unnecessary weight. Carrying excessive weight in the vehicle reduces fuel efficiency. Remove any unnecessary items from the trunk and interior to reduce the load on the engine. Every extra pound adds up, so lightening the load can make a noticeable difference in MPG.

Air conditioning can reduce fuel efficiency. When possible, use the fan or open the windows. If you must use the air conditioning, set it to a reasonable temperature and avoid using it on the highest setting unless necessary. The air conditioning compressor puts extra load on the engine, detracting from its power.

Keep up with routine maintenance. Regular maintenance, such as oil changes and tune-ups, ensures that the engine is running efficiently. Follow the manufacturer’s recommended maintenance schedule to keep your Rio Eco in top condition and maximize its fuel economy. You can find all Kia fuel economy data on our site.