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2026 Cadillac XT6 Specs: MPG, Gas Mileage, Engine Size & Dimensions

2020–2025 model years22 variantsUp to 23 MPG combined
Real-World MPG QuestionsBed Dimensions & Cargo SpaceService Intervals

2026 Cadillac XT6 Specs at a Glance

The 2026 Cadillac XT6 gets 23 mpg combined on the 2.0L Front-Wheel Drive configuration, weighs 4,689 lbs, measures 198.8 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
23 mpg (21 city / 27 hwy)
Best configuration: 2.0L · Front-Wheel Drive · Automatic (S9) · other 2026 trims rate 20–23 mpg combined
Engine
2.0L 4-cyl
2.0L · Front-Wheel Drive · Automatic (S9) · 2 powertrains offered
Curb weight
4,689 lbs
Heaviest recorded configuration: XT6 4DR SUV
Length
198.8 in · 77.2 in wide · 68.9 in tall
Wheelbase
112.6 in
NHTSA overall
5-star (2024)

Detailed Specifications

MPG & Fuel Economy

MPG for every year and trim

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Engine Specifications

Engine Specs for every year and trim

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Annual Fuel Cost

Fuel Cost for every year and trim

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Transmission Specifications

Transmission for every year and trim

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Drivetrain & Drive Type

Drivetrain for every year and trim

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Vehicle Class & EPA Size Category

Vehicle Class for every year and trim

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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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NHTSA Safety Ratings

Safety for every year and trim

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Cadillac XT6 — All Years Overview

YearTrimEngineTransDriveCityHwyCombinedFuel
2025Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)Front-Wheel Drive212723Premium Gasoline
2025Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)All-Wheel Drive212623Premium Gasoline
2025Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)Front-Wheel Drive192621Regular Gasoline
2025Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)All-Wheel Drive182520Regular Gasoline
2024Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)All-Wheel Drive212623Premium Gasoline
2024Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)Front-Wheel Drive212723Premium Gasoline
2024Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)Front-Wheel Drive192621Regular Gasoline
2024Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)All-Wheel Drive182521Regular Gasoline
2023Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)All-Wheel Drive212623Premium Gasoline
2023Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)Front-Wheel Drive212723Premium Gasoline
2023Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)All-Wheel Drive182521Regular Gasoline
2023Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)Front-Wheel Drive192621Regular Gasoline
2022Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)Front-Wheel Drive212723Premium Gasoline
2022Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)All-Wheel Drive212623Premium Gasoline
2022Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)Front-Wheel Drive192621Regular Gasoline
2022Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)All-Wheel Drive182521Regular Gasoline
2021Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)All-Wheel Drive212623Premium Gasoline
2021Auto (S9), 4 cyl, 2.0 L4 · 2.0LAutomatic (S9)Front-Wheel Drive212723Premium Gasoline
2021Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)Front-Wheel Drive192621Regular Gasoline
2021Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)All-Wheel Drive182521Regular Gasoline
2020Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)Front-Wheel Drive182520Regular Gasoline
2020Auto (S9), 6 cyl, 3.6 L6 · 3.6LAutomatic (S9)All-Wheel Drive172420Regular Gasoline

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Cadillac XT6 — Frequently Asked Questions

What is the fuel economy of the 2025 Cadillac XT6?

The Cadillac XT6 is EPA-rated at up to 23 MPG combined (21 city / 27 highway).

What engine does the 2025 Cadillac XT6 have?

The Cadillac XT6 uses a 2.0L 4-cylinder engine paired with an Automatic transmission.

What years of the Cadillac XT6 are covered here?

This page documents 22 verified Cadillac XT6 configurations across model years 2020–2025.

Which model year of the Cadillac XT6 is the most fuel efficient?

The 2025 Cadillac XT6 holds the highest combined rating at 23 MPG; the 2020 sits lowest at 20 MPG, a difference of 3 MPG (about 15%) across the 6 rated years on file.

How many engine options does the Cadillac XT6 have?

The records list 2 distinct displacements for the Cadillac XT6 — 2L, 3.6L — which is why combined MPG varies between trims of the same year.

Is the 2025 Cadillac XT6 front-wheel drive or all-wheel drive?

The Cadillac XT6 appears in 2 drivetrain layouts across the years documented here — Front-Wheel Drive, All-Wheel Drive — with the latest 2025 record on Front-Wheel Drive.

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