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2026 Genesis G90 Specs: MPG, Gas Mileage, Engine Size & Dimensions

2017–2026 model years32 variantsUp to 21 MPG combined
Real-World MPG QuestionsBed Dimensions & Cargo SpaceService Intervals

2026 Genesis G90 Specs at a Glance

The 2026 Genesis G90 gets 21 mpg combined on the 3.5L All-Wheel Drive configuration, weighs 4,859 lbs, measures 207.9 in long. Figures are per configuration, not a single official number — other trims rate as low as 20 mpg combined. Every figure below comes from EPA, NHTSA, or manufacturer published data — no estimates.

Combined MPG
21 mpg (18 city / 26 hwy)
Best configuration: 3.5L · All-Wheel Drive · Automatic (S8) · other 2026 trims rate 20–21 mpg combined
Engine
3.5L 6-cyl
3.5L · All-Wheel Drive · Automatic (S8)
Curb weight
4,859 lbs
Heaviest recorded configuration: G90 4DR SEDAN
Length
207.9 in · 58.7 in wide · 76 in tall
Wheelbase
125.2 in

2026 Genesis G90 trims and MPG

TrimEngineTransDriveCityHwyCombined
Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive182621
Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive172420

Detailed Specifications

MPG & Fuel Economy

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Engine Specifications

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Annual Fuel Cost

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Transmission Specifications

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Drivetrain & Drive Type

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Vehicle Class & EPA Size Category

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Maintenance Schedule & Service Intervals

Maintenance for every year and trim

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Dimensions & Size

Dimensions for every year and trim

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Curb Weight

Curb Weight for every year and trim

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Genesis G90 — All Years Overview

YearTrimEngineTransDriveCityHwyCombinedFuel
2026Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive182621Premium Gasoline
2026Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2025Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive182621Premium Gasoline
2025Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2024Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive182621Premium Gasoline
2024Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2023Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive182621Premium Gasoline
2023Auto (S8), 6 cyl, 3.5 L6 · 3.5LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2022Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2022Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)Rear-Wheel Drive172419Premium Gasoline
2022Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)All-Wheel Drive162318Premium Gasoline
2022Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)Rear-Wheel Drive162419Premium Gasoline
2021Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2021Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)Rear-Wheel Drive172419Premium Gasoline
2021Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)All-Wheel Drive162318Premium Gasoline
2021Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)Rear-Wheel Drive162419Premium Gasoline
2020Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)All-Wheel Drive172520Premium Gasoline
2020Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)Rear-Wheel Drive172520Premium Gasoline
2020Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)All-Wheel Drive152318Premium Gasoline
2020Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)Rear-Wheel Drive162419Premium Gasoline
2019Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2019Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)Rear-Wheel Drive172420Premium Gasoline
2019Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)All-Wheel Drive152318Premium Gasoline
2019Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)Rear-Wheel Drive162419Premium Gasoline
2018Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2018Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)Rear-Wheel Drive172420Premium Gasoline
2018Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)All-Wheel Drive152318Premium Gasoline
2018Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)Rear-Wheel Drive162419Premium Gasoline
2017Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)All-Wheel Drive172420Premium Gasoline
2017Auto (S8), 6 cyl, 3.3 L6 · 3.3LAutomatic (S8)Rear-Wheel Drive172420Premium Gasoline
2017Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)All-Wheel Drive152318Premium Gasoline
2017Auto (S8), 8 cyl, 5.0 L8 · 5.0LAutomatic (S8)Rear-Wheel Drive162419Premium Gasoline

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Genesis G90 — Frequently Asked Questions

What is the fuel economy of the 2026 Genesis G90?

The Genesis G90 is EPA-rated at up to 21 MPG combined (18 city / 26 highway).

What engine does the 2026 Genesis G90 have?

The Genesis G90 uses a 3.5L 6-cylinder engine paired with an Automatic transmission.

What years of the Genesis G90 are covered here?

This page documents 32 verified Genesis G90 configurations across model years 2017–2026.

Which model year of the Genesis G90 is the most fuel efficient?

The 2026 Genesis G90 holds the highest combined rating at 21 MPG; the 2017 sits lowest at 20 MPG, a difference of 1 MPG (about 5%) across the 10 rated years on file.

How many engine options does the Genesis G90 have?

The records list 3 distinct displacements for the Genesis G90 — 3.3L, 3.5L, 5L — which is why combined MPG varies between trims of the same year.

Is the 2026 Genesis G90 front-wheel drive or all-wheel drive?

The Genesis G90 appears in 2 drivetrain layouts across the years documented here — All-Wheel Drive, Rear-Wheel Drive — with the latest 2026 record on All-Wheel Drive.

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