AutoSpecData

Bentley Bentayga Fuel Economy (MPG)

What is the real-world gas mileage of a 2027 Bentley Bentayga?

The 2027 Bentley Bentayga gets up to 21 MPG combined (19 city / 23 highway) in EPA testing.

Latest model year (2027):

The Bentley Bentayga gets up to 21 MPG combined (19 city / 23 highway) in the Auto (S8), 6 cyl, 3.0 L trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsCurb WeightEV Range

Bentley Bentayga MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2027Config 1 of 2Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline192321
2027Config 2 of 2Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2026Config 1 of 2Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline192321
2026Config 2 of 2Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2025Config 1 of 2Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline192321
2025Config 2 of 2Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2024Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline142116
2023Config 1 of 3Auto (S8), 12 cyl, 6.0 L12 6.0LPremium Gasoline121914
2023Config 2 of 3Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline182420
2023Config 3 of 3Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline142117
2022Config 1 of 2Auto (S8), 12 cyl, 6.0 L12 6.0LPremium Gasoline121814
2022Config 2 of 2Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline152418
2021Config 1 of 3Auto (S8), 12 cyl, 6.0 L12 6.0LPremium Gasoline121814
2021Config 2 of 3Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline172119
2021Config 3 of 3Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline152418
2020Config 1 of 3Auto (S8), 12 cyl, 6.0 L12 6.0LPremium Gasoline121714
2020Config 2 of 3Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline172119
2020Config 3 of 3Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline142317
2019Auto (S8), 8 cyl, 4.0 L8 4.0LPremium Gasoline142317
2018Auto (S8), 12 cyl, 6.0 L12 6.0LPremium Gasoline121915
2017Auto (S8), 12 cyl, 6.0 L12 6.0LPremium Gasoline121915

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Bentley Bentayga data analysis

How Bentley Bentayga combined fuel economy varies

Across 21 configurations recorded for the 2017 through 2027 Bentley Bentayga, combined fuel economy runs from 14 MPG to 21 MPG. The strongest figure belongs to the 2025 Bentley Bentayga (Auto (S8), 6 cyl, 3.0 L) at 21 MPG, and the weakest to the 2023 car (Auto (S8), 12 cyl, 6.0 L) at 14 MPG — a spread of 50%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Bentley Bentayga would be misleading.

What changed for 2027

Average combined fuel economy for the 2027 Bentley Bentayga is 18.5 MPG, against 18.5 MPG for the 2026 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Bentley Bentayga data

This page lists every 2017 through 2027 Bentley Bentayga record we hold for this measurement — 21 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Bentley Bentayga numbers

The 2017 through 2027 Bentley Bentayga entries here cover the variants Auto (S8), 6 cyl, 3.0 L, Auto (S8), 8 cyl, 4.0 L and Auto (S8), 12 cyl, 6.0 L. 2023 is the busiest model year in the record with 3 separate measured configurations, which is why a single quoted combined fuel economy figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Bentley Bentayga figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Bentley Bentayga record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speedEPA highway specAutoSpecData adjusted MPGFuel you lose
60 mph24 MPG24 MPG0%
65 mph24 MPG21.9 MPG9%
70 mph24 MPG20 MPG17%
75 mph24 MPG18.3 MPG24%
80 mph24 MPG16.8 MPG30%

Our Real-World Speed MPG Adjuster re-scales the Bentley Bentayga EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About Bentayga MPG

What is the MPG of the Bentley Bentayga?

The Bentley Bentayga gets up to 21 MPG combined (19 city / 23 highway) in the 2027 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Bentley Bentayga trim has the best fuel economy?

The Auto (S8), 6 cyl, 3.0 L trim offers the best combined fuel economy at 21 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

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