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2021 Chevrolet Suburban · Specs

Every EPA configuration of the 2021 Chevrolet Suburban.

10 configurations, each rated separately by EPA. Nothing here is averaged into a single figure for the model.

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The short answer

EPA published 10 configurations of the 2021 Chevrolet Suburban, 10 of them with a fuel economy rating. Combined ratings run from 16 to 23 MPG. A configuration is a specific engine, drive and transmission combination, and its rating describes that combination only.

Configurations
10
With a fuel rating
10
Combined MPG
16 to 23
Registered in NYC
393

Data: EPA and DOE fuel economy ratings, as ingested August 17, 2026

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Other Suburban years
Earliest here2022

Fuel economy, configuration by configuration

10 of the 10 configurations carry an EPA rating. City, highway and combined are the agency's own test figures, and the annual fuel cost is its own estimate at its own assumed mileage and fuel price.

EPA and DOE ratings for the 2021 Chevrolet Suburban. An electric configuration is rated in MPGe, which is a conversion of electricity into a gallon-equivalent and compares consumption rather than cost.
ConfigurationFuelCityHighwayCombinedAnnual fuel cost
3.0L, 6-cyl, Automatic 10-spd, Rear-Wheel DriveDiesel212723$3,450
3.0L, 6-cyl, Automatic 10-spd, 4-Wheel DriveDiesel202622$3,600
5.3L, 8-cyl, Automatic 10-spd, Rear-Wheel DriveRegular Gasoline162018$3,400
6.2L, 8-cyl, Automatic 10-spd, Rear-Wheel DrivePremium Gasoline152017$4,450
5.3L, 8-cyl, Automatic 10-spd, 4-Wheel DriveRegular Gasoline151917$3,600
5.3L, 8-cyl, Automatic 10-spd, Rear-Wheel DriveRegular Gasoline152017$3,600
6.2L, 8-cyl, Automatic 10-spd, 4-Wheel DrivePremium Gasoline141916$4,750
6.2L, 8-cyl, Automatic 10-spd, Rear-Wheel DrivePremium Gasoline142016$4,750
6.2L, 8-cyl, Automatic 10-spd, 4-Wheel DrivePremium Gasoline131916$4,750
5.3L, 8-cyl, Automatic 10-spd, 4-Wheel DriveRegular Gasoline151916$3,850
Mechanicals

What is under each of them.

Engine, drive and transmission as EPA recorded them. A blank is a field the agency did not populate, which on an electric car is most of this table.

EPA vehicle records for this model year. Displacement is in litres and the transmission code is EPA's own.
ConfigurationEPA classEngineDriveTransmission
3.0L, 6-cyl, Automatic 10-spd, Rear-Wheel DriveStandard Sport Utility Vehicle 2WD3L, 6-cyl, turbo, stop-startRear-Wheel DriveAutomatic 10-spd
3.0L, 6-cyl, Automatic 10-spd, 4-Wheel DriveStandard Sport Utility Vehicle 4WD3L, 6-cyl, turbo, stop-start4-Wheel DriveAutomatic 10-spd
5.3L, 8-cyl, Automatic 10-spd, Rear-Wheel DriveStandard Sport Utility Vehicle 2WD5.3L, 8-cyl, stop-startRear-Wheel DriveAutomatic 10-spd
6.2L, 8-cyl, Automatic 10-spd, Rear-Wheel DriveStandard Sport Utility Vehicle 2WD6.2L, 8-cyl, stop-startRear-Wheel DriveAutomatic 10-spd
5.3L, 8-cyl, Automatic 10-spd, 4-Wheel DriveStandard Sport Utility Vehicle 4WD5.3L, 8-cyl, stop-start4-Wheel DriveAutomatic 10-spd
5.3L, 8-cyl, Automatic 10-spd, Rear-Wheel DriveStandard Sport Utility Vehicle 2WD5.3L, 8-cylRear-Wheel DriveAutomatic 10-spd
6.2L, 8-cyl, Automatic 10-spd, 4-Wheel DriveStandard Sport Utility Vehicle 4WD6.2L, 8-cyl, stop-start4-Wheel DriveAutomatic 10-spd
6.2L, 8-cyl, Automatic 10-spd, Rear-Wheel DriveStandard Sport Utility Vehicle 2WD6.2L, 8-cylRear-Wheel DriveAutomatic 10-spd
6.2L, 8-cyl, Automatic 10-spd, 4-Wheel DriveStandard Sport Utility Vehicle 4WD6.2L, 8-cyl4-Wheel DriveAutomatic 10-spd
5.3L, 8-cyl, Automatic 10-spd, 4-Wheel DriveStandard Sport Utility Vehicle 4WD5.3L, 8-cyl4-Wheel DriveAutomatic 10-spd

Tailpipe CO2 and EPA's own scores

EPA scores fuel economy and greenhouse gas out of 10, where 10 is best. Tailpipe CO2 is grams per mile, and it is tailpipe only: it does not count the emissions of generating the electricity an electric car runs on, which is why every EV on this table reads zero.

EPA greenhouse gas and fuel economy scores, and tailpipe CO2 in grams per mile.
ConfigurationCO2 g/miGHG scoreFuel economy score
3.0L, 6-cyl, Automatic 10-spd, Rear-Wheel Drive4374 / 105 / 10
3.0L, 6-cyl, Automatic 10-spd, 4-Wheel Drive4444 / 104 / 10
5.3L, 8-cyl, Automatic 10-spd, Rear-Wheel Drive4923 / 103 / 10
6.2L, 8-cyl, Automatic 10-spd, Rear-Wheel Drive5253 / 103 / 10
5.3L, 8-cyl, Automatic 10-spd, 4-Wheel Drive5153 / 103 / 10
5.3L, 8-cyl, Automatic 10-spd, Rear-Wheel Drive5233 / 103 / 10
6.2L, 8-cyl, Automatic 10-spd, 4-Wheel Drive5582 / 102 / 10
6.2L, 8-cyl, Automatic 10-spd, Rear-Wheel Drive5442 / 102 / 10
6.2L, 8-cyl, Automatic 10-spd, 4-Wheel Drive5702 / 102 / 10
5.3L, 8-cyl, Automatic 10-spd, 4-Wheel Drive5552 / 102 / 10
About these figures

EPA and DOE fuel economy ratings (FuelEconomy.gov). Unaveraged: each EPA configuration is its own row, because a trim's rating is not the model's. FuelEconomy.gov asks that its data be attributed to EPA and DOE and not presented as an official EPA product. This page is our arrangement of it, not theirs.

What It Is Like To OwnOther Suburban YearsAll Chevrolets
Source and reuse

Registration counts: New York State DMV registration file, five New York City counties, August 17, 2026 snapshot. A registration is a record in a state database, not a car on the road, and the borough is where the registrant receives mail rather than where the car is driven. How we counted.

Fuel economy: EPA and DOE ratings published at FuelEconomy.gov, unaveraged, so each configuration is its own row. Recalls and complaints: NHTSA Office of Defects Investigation, the agency's own wording, as ingested August 17, 2026. Complaints are reports members of the public filed, not confirmed defects. The NYC registration study is the analysis these counts sit on top of.

234 vehicles in this directory, covering 520,848 registered cars. Data as of August 17, 2026.

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