2018 Hyundai Sonata MPG

The 2018 Hyundai Sonata gets 26 to 31 mpg depending on the trim level and engine. Here’s how it competes against other midsize sedans.
Written by Jaya Anandjit
Reviewed by Claire Beaney
The 2018 Hyundai Sonata gets good fuel economy ratings for a midsize sedan with an EPA rating of 26 mpg to 31 mpg depending on trim level and powertrain option. 
The 2018 Hyundai Sonata gets fourteen trims and three powertrain options, delivering numerous upgrades and special features throughout. With a redesigned user interface and tons of comfortable interior space to enjoy multiple tech upgrades, the 2018 Sonata makes for a great option from its class—especially if fuel efficiency is a priority.
If fuel efficiency is one of your prime considerations, you’ll want to know exactly which 2018 Sonata will get you the highest miles per gallon. We've put together this complete guide to help you choose the 2018 Hyundai Sonata trim level and engine option that will get you the best gas mileage.
Compare insurance quotes from 50+ carriers with Jerry in under 45 seconds
Compare insurance quotes from 50+ carriers with Jerry in under 45 seconds
icon4.7/5 rating on the App Store | Trusted by 5+ million customers and 7 million cars
icon4.7/5 app rating | Trusted by 5M+ drivers

2018 Hyundai Sonata fuel economy

Fuel efficiency ratings for the 2018 Hyundai Sonata depending on the powertrain option in your model. All fourteen trim levels come with front-wheel drive, but only ten trims come equipped with the base 2.4-liter four-cylinder engine and a six-speed automatic transmission. This base powertrain delivers an EPA rating of 29 mpg combined, with 25 mpg in the city and 36 mpg on highways. 
As for the upgraded 2.0-liter turbocharged four-cylinder with an eight-speed automatic transmission in three of the highest-level trims, you can expect 26 mpg combined, 23 mpg in the city, and 32 mpg on highways. 
These are fairly good ratings for the base and upgraded engine options in a 2018 midsize sedan, but the real winner for fuel efficiency in the 2018 Sonata is the 1.6-liter turbocharged four-cylinder engine with a seven-speed manual transmission. This powertrain delivers 31 mpg combined, 28 mpg in the city, and 37 mpg on highways. 
Here’s a quick look at the fuel efficiency ratings for each 2018 Sonata trim level and engine, plus their horsepower and applicable gas type: 
2018 Hyundai Sonata trim level
Powertrain
Horsepower
Fuel type
EPA-estimated fuel economy (combined/city/highway)
SE SULEV,
SE
,
SEL+
, SEL+ SULEV, SEL, SEL SULEV, Sport+,
Sport
,
Limited
, Limited SULEV
2.4-liter four-cylinder w/six-speed automatic transmission and FWD
185
Regular unleaded
29/25/36
Sport 2.0T,
Limited 2.0T
, Limited 2.0T+ 
2.0-liter turbocharged four-cylinder w/eight-speed automatic transmission and FWD
245
Regular unleaded
26/23/32
1.6-liter turbocharged four-cylinder w/seven-speed manual transmission and FWD
178
Regular unleaded
31/28/37
Are you overpaying for your car insurance?
Compare quotes and find out in 45 seconds.
No spam or unwanted phone calls · No long forms
No spam or unwanted phone calls · No long forms · No fees
icon4.717k Ratings
5M+Drivers Joined
7M+Cars Garaged
Every version of the 2018 Hyundai Sonata comes with an 18.5-gallon fuel tank, which takes regular unleaded gas
Edmunds estimates that the monthly fuel cost for a 2018 Hyundai Sonata with the base engine is around $160/month, while the upgraded engine could cost around $177/month to fill up. The Eco trim and its fuel-efficient powertrain get the lowest monthly fuel cost of $149/month. Compared to the average midsize sedan's monthly fuel cost of $207, the 2018 Hyundai is fairly affordable. 
MORE: How to pass emissions testing

Is the 2018 Acura RDX good on gas? 

Yes, the 2018 Hyundai Sonata is a pretty good choice for fuel efficiency. 
The base powertrain and the Eco trim’s upgraded engine deliver the highest fuel efficiency ratings between 29 to 31 mpg combined, while the 2.0-liter turbocharged four-cylinder engine option delivers a respectable efficiency level of 26 mpg. These ratings are fairly on-par for a midsize sedan. 
For example, the 2018
Chevy Malibu
and its base 1.5-liter turbocharged four-cylinder engine with a six-speed automatic transmission deliver 30 mpg combined, with 27 mpg in the city and 36 mpg on highways. 
Comparatively, the 2018 Malibu’s upgraded 2.0-liter turbocharged four-cylinder engine with a nine-speed automatic transmission return 26 mpg combined, 22 mpg in the city, and 32 mpg on the highway.
The 2018 Malibu’s ratings are nearly identical to the Sonata’s, but what about the “class leader” for midsize sedans—AKA the beloved
Honda Accord
?
The 2018 Honda Accord gets a base 1.5-liter turbocharged four-cylinder engine with a continuously variable transmission (CVT), which delivers 33 mpg combined, 30 mpg in the city, and 38 mpg on highways.
Like the Sonata and the Malibu, the Accord’s upgraded 2.0-liter turbocharged four-cylinder engine—paired with a ten-speed automatic transmission—drops fuel efficiency ratings to 27 mpg combined, 23 mpg in the city, and 34 mpg on highways.
Although these numbers are similar to the 2018 Sonata and Malibu’s ratings, the Accord gets slightly better fuel efficiency with either engine. But while the Sonata may fall short for mileage next to the Accord, it pushes competitive fuel economy ratings when next to vehicles like the
Volkswagen Passat
and the
Subaru Legacy
, which both get 29 mpg combined.

How to improve fuel efficiency for a 2018 Acura RDX

Even though the 2018 Hyundai Sonata gets great fuel efficiency ratings, you can still use a few easy methods to improve its gas mileage—and that’s with zero mechanical upgrades. Here are some quick tips to help you save dollars at the gas pump: 
  • Cruise control comes standard in all 2018 Hyundai Sonatas, and can improve fuel efficiency by reducing harsh acceleration and heavy braking. With the Sonata’s Ultimate Package, you can get adaptive cruise control for an even easier fuel-saving ride.
  • Clean out your car to lighten the overall load on your engine. This way, it won’t need to work as hard or burn as much fuel to keep you moving.
  • Regular maintenance keeps your Sonata in tip-top shape, which can help you catch any mechanical issues that may impact your fuel efficiency.
Overall, taking care of your vehicle and using any available features to conserve fuel can go a long way at the gas station, especially with rising fuel prices. 
“I thought my previous insurance rate was the best I could get, since I have a luxury SUV. After
Jerry
found me quotes, I ended up paying only $80 a month for the same exact coverage. I’ll be shopping for auto insurance through Jerry from now on!” —Petra S.
RECOMMENDED
Compare auto insurance policies
No spam or unwanted phone calls · No long forms
Find insurance savings
Are you overpaying for car insurance?
Compare quotes and find out in 45 seconds.
Try Jerry

Easiest way to compare and buy car insurance

√
No long forms
√
No spam or unwanted phone calls
√
Quotes from top insurance companies
Find insurance savings