36 MPG combined isn’t going to set any records, but it keeps the 2023 Kia Rio relevant. This isn’t a car for canyon carving or hauling the family across the country. It’s transportation, designed to get you from A to B with minimal fuss and maximum affordability. In that context, 36 MPG is welcome.

City and highway performance

The EPA estimates the Rio achieves 32 MPG in the city and 41 MPG on the highway. The lower city number reflects stop-and-go driving, where the Rio’s 1.6L engine works harder to accelerate. The six-speed automatic transmission (AV-S1), helps smooth out these transitions. The highway figure demonstrates the Rio’s relaxed cruising ability. At 65-75 MPH, the engine makes limited noise, allowing you to cover significant distances with respectable fuel consumption. That higher highway fuel economy also assumes the use of the air conditioning compressor, which can noticeably impact fuel economy in urban conditions.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Kia Rio at $1,200. This figure is based on driving 15,000 miles per year, with a 55/45 split between city and highway driving, and using national average fuel prices. Your actual fuel costs will vary depending on your driving habits and where you live, but the $1,200 figure provides a useful benchmark for comparing the Rio’s running costs to other vehicles. This is important for budget-conscious buyers who need to factor gas costs into their monthly expenses. See all Kia fuel economy data on this site.

Real-world expectations

While the EPA figures provide a standardised comparison, real-world fuel economy often differs. Drivers report achieving figures close to the EPA estimates on longer journeys. Aggressive acceleration, frequent use of air conditioning, and carrying heavy loads will negatively impact fuel economy. Gentle driving and meticulous maintenance can help you exceed the EPA numbers. Monitor your average fuel economy indicated in the in-dash display, which will give you a more accurate picture of your individual fuel consumption. This vehicle is known for its low running cost. Check out RIO MPG across all years.

How it compares

The Rio compares well against its direct competitors. The Mitsubishi Mirage G4 achieves 37 MPG combined, a slight advantage. However, the Mirage’s 1.2L three-cylinder engine is less powerful and can feel strained in many driving situations. The Nissan Versa manages 35 MPG combined with its automatic transmission, putting it slightly behind the Rio. The Versa has larger overall space inside and a larger trunk. Opting for a larger vehicle such as the Honda Civic hatchback nets a 35 MPG combined figure, but at a higher purchase price. Rio buyers should consider balancing upfront cost with long-term running expenses, and the Rio strikes that balance. Buyers scrutinize every dollar and prioritize value, making these numbers matter.

Tips to maximize efficiency

The Rio’s small engine responds to driving style. Avoid aggressive acceleration and braking. Smooth, gradual inputs will improve fuel economy and make for a more comfortable ride. Anticipate traffic flow and maintain a consistent speed whenever possible. Doing so minimizes the work the engine has to do.

Ensure your tires are properly inflated to the recommended pressure. Under-inflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly, especially during temperature changes. You will find the recommended pressure listed on a sticker on the driver’s side doorjamb. Using the correct pressure will have an impact.

Remove unnecessary weight from the vehicle. Extra cargo in the trunk increases the Rio’s workload, decreasing fuel efficiency. Clear out any items you don’t need. This can be as simple as taking the beach gear out of the trunk after a day at the beach.

Regular maintenance is essential for fuel economy. Ensure the engine air filter is clean and replace it as recommended in the owner’s manual. A clean air filter improves airflow to the engine, boosting efficiency. Following the prescribed maintenance schedule will help maximize efficiency over the Rio’s lifespan.