--- title: "2020-2025 Hyundai Sonata Specs: Weight, Fuel Tank, MPG" description: "Fuel tank 15.9 gallons. Curb weight, fuel economy, ground clearance and other key numbers for the 2020-2025 Hyundai Sonata, by engine and drivetrain." url: "https://whichcarparts.com/cars/hyundai/sonata/2020-2025/specs" updated: "2026-08-21" --- # 2020-2025 Hyundai Sonata Specifications Fuel tank 15.9 gallons. Curb weight, fuel economy, ground clearance and other key numbers for the 2020-2025 Hyundai Sonata, by engine and drivetrain. **Quick answer**: The 2020-2025 Hyundai Sonata holds 15.9 gallons of fuel and is rated 28 city / 38 hwy (2.5L); ~27/36 (1.6T); ~23/33 (2.5T N Line); ~45/51 (Hybrid, varies by trim). ## 2020-2025 Hyundai Sonata key specs | Spec | Value | | --- | --- | | Fuel tank | 15.9 gallons | | Fuel economy | 28 city / 38 hwy (2.5L); ~27/36 (1.6T); ~23/33 (2.5T N Line); ~45/51 (Hybrid, varies by trim) | | Key fob battery | CR2032 | ## 2020-2025 Hyundai Sonata engines | Engine | Trims | Power | Fuel | | --- | --- | --- | --- | | 2.5L 4-cylinder (Smartstream G4KN GDI) | SE, SEL, Limited (2.5L) | 191 hp | Regular 87 octane | | 1.6L Turbo 4-cylinder (Smartstream G1.6 T-GDI) | Limited 1.6T | 180 hp | Regular 87 octane | | 2.5L Turbo 4-cylinder (Smartstream G2.5 T-GDI, N Line) | N Line | 290 hp | Regular 87 octane (premium recommended for peak output) | | 1.6L Turbo Hybrid (Smartstream G1.6 T-GDI + electric motor) | Hybrid, Hybrid Limited, Hybrid Blue | 192 hp | Regular 87 octane | ## Which Hyundai Sonata model years does this cover? These specs specifications apply to every Hyundai Sonata built from 2020 through 2025, the DN8 (8th generation), mid-size sedan. Nothing in this specification changes between those model years. - [2020 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2020) - [2021 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2021) - [2022 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2022) - [2023 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2023) - [2024 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2024) - [2025 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2025) ## What changed during the 2020-2025 Hyundai Sonata | Years | What changed | | --- | --- | | 2020 | Generation launch; 2.5L and 1.6T gas engines, plus Hybrid, at launch | | 2021 | N Line trim introduced with the 2.5T Smartstream engine; 1.6T dropped from most trims | | 2022 | N Line Night Edition appearance package added; panoramic sunroof newly available | | 2023 | SEL trim gains a larger touchscreen infotainment system with navigation; Highway Driving Assist added to the driver-assist suite | | 2024 | Facelift with revised front/rear styling and updated interior tech | ## 2020-2025 Hyundai Sonata specs: common questions ### How big is the fuel tank on a 2020-2025 Hyundai Sonata? 15.9 gallons. ### What gas mileage does a 2020-2025 Hyundai Sonata get? 28 city / 38 hwy (2.5L); ~27/36 (1.6T); ~23/33 (2.5T N Line); ~45/51 (Hybrid, varies by trim) on the EPA cycle. ## Sources - [Wikipedia, Hyundai Smartstream engine family (G1.6T, G1.6T Hybrid, displacement/output data)](https://en.wikipedia.org/wiki/Hyundai_Smartstream_engine) - [AMSoil lookup, 2022 Sonata 2.5L oil viscosity/capacity](https://www.amsoil.com/lookup/auto-and-light-truck/2022/hyundai/sonata/2-5l-4-cyl-engine-code-a-a/) - [Costa Oils, 2023 Sonata 2.5L Turbo (N Line) oil guide](https://costaoils.com/2023-hyundai-sonata-2-5l-turbo-oil-change-guide-2/) - [Hyundai Forums, N Line owner's manual 0W-30 vs. 0W-20 cap discussion](https://www.hyundai-forums.com/threads/0w-20-oil-only-one-listed.671641/) - [Goodyear, 2024 Sonata factory tire fitments by trim](https://www.goodyear.com/en-us/vehicles/Hyundai/Sonata/2024) - [Headquarter Hyundai, 2020 Sonata fuel tank capacity and EPA mpg](https://www.headquarterhyundai.com/research/2020-hyundai-sonata-mpg/) - [US News, 2021 Sonata Limited 1.6T engine specs](https://cars.usnews.com/cars-trucks/hyundai/sonata/2021/specs/sonata-limited-1-6t-416162) - [Go-Parts, 2021-2024 Hyundai/Kia 2.5L Smartstream (G4KN) oil dilution/piston-ring notes](https://www.go-parts.com/garage/engine-complete-assembly-kia-sorento-hyundai-santa-fe-hyundai-sonata-2021-2024) ## Other Hyundai Sonata generations - [2015-2019 Hyundai Sonata specs](https://whichcarparts.com/cars/hyundai/sonata/2015-2019/specs) - [2011-2014 Hyundai Sonata specs](https://whichcarparts.com/cars/hyundai/sonata/2011-2014/specs) Or [compare all generations](https://whichcarparts.com/cars/hyundai/sonata/specs). ## More for the 2020-2025 Hyundai Sonata - [Oil & filter](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/oil) - [Battery](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/battery) - [Tires & wheels](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/tires) - [Wiper blades](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/filters) - [Bulbs](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/bulbs) - [Brakes](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/brakes) - [Fluids](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/fluids) - [Service schedule](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/common-problems) - [Oil light reset](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/oil-reset) - [Key fob battery](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/key-fob-battery) Specifications vary with engine option, production date, and market.