2023 GMC Yukon XL Specs
6 powertrain configurations on federal record for the 2023 GMC Yukon XL: 3.0L 6-cyl Diesel; 6.2L 8-cyl Premium Gasoline; 5.3L 8-cyl Regular Gasoline, in Rear-Wheel Drive and 4-Wheel Drive, rated up to 23 MPG combined by the EPA.
Source: EPA federal records (fueleconomy.gov) · Updated 2026-10-26 · By CarWhere Research
| Engine | Transmission | Drivetrain | City | Highway | Combined |
|---|---|---|---|---|---|
| 3.0L 6-cyl Diesel | Automatic 10-spd | Rear-Wheel Drive | 21 | 27 | 23 |
| 3.0L 6-cyl Diesel | Automatic 10-spd | 4-Wheel Drive | 20 | 26 | 22 |
| 6.2L 8-cyl Premium Gasoline | Automatic 10-spd | Rear-Wheel Drive | 14 | 19 | 16 |
| 5.3L 8-cyl Regular Gasoline | Automatic 10-spd | Rear-Wheel Drive | 15 | 20 | 17 |
| 6.2L 8-cyl Premium Gasoline | Automatic 10-spd | 4-Wheel Drive | 14 | 18 | 16 |
| 5.3L 8-cyl Regular Gasoline | Automatic 10-spd | 4-Wheel Drive | 15 | 19 | 16 |
Yukon XL by year
Buying a used Yukon XL? Specs are the easy half.
Check which Yukon XL years to avoid (federal complaint and recall records), see the live Yukon XL value by year, then check the specific car: the Full VIN Report shows that VIN's factory build, recall record, and market history before you pay for it.
Frequently asked questions
What engines does the 2023 GMC Yukon XL have?
3 engines on federal record: 3.0L 6-cyl Diesel; 6.2L 8-cyl Premium Gasoline; 5.3L 8-cyl Regular Gasoline, offered with Automatic 10-spd and Rear-Wheel Drive or 4-Wheel Drive. The full per-configuration table is above.
What gas mileage does the 2023 GMC Yukon XL get?
EPA combined ratings run 16–23 MPG depending on configuration — the table above shows city/highway/combined for each engine, transmission, and drivetrain.
Is 2023 a good year for the GMC Yukon XL?
Specs don't answer that — the federal complaint and recall record does. See the GMC Yukon XL year-by-year reliability verdicts at carwhere.com/research/years-to-avoid/gmc/yukon-xl, built from NHTSA data.
How do I get the specs for my exact VIN?
These are the federal-record configurations for the 2023 GMC Yukon XL overall. For one specific vehicle — its exact engine, trim, factory options, and original window sticker — decode the 17-character VIN free at carwhere.com/tools/vin-decoder.
Where does this data come from?
The U.S. EPA's public vehicle dataset (fueleconomy.gov) — the federal record of every US-market configuration since 1984 — refreshed 2026-10-26. Public-domain data; republish with attribution to CarWhere (carwhere.com).