AutoSpecData

BMW 3 Series Fuel Economy (MPG)

What is the real-world gas mileage of a 2026 BMW 3 Series?

The 2026 BMW 3 Series gets up to 36 MPG combined (31 city / 43 highway) in EPA testing.

Latest model year (2026):

The BMW 3 Series gets up to 31 MPG combined (28 city / 35 highway) in the Auto (S8), 4 cyl, 2.0 L trim.

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

BMW 3 Series MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2026Config 1 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263429
2026Config 2 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline283531
2026Config 3 of 4Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline273329
2026Config 4 of 4Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline263329
2025Config 1 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline283531
2025Config 2 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263429
2025Config 3 of 4Auto (S8), 4 cyl, 3.0 L4 3.0LPremium Gasoline263329
2025Config 4 of 4Auto (S8), 4 cyl, 3.0 L4 3.0LPremium Gasoline273329
2024Config 1 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253429
2024Config 2 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243227
2024Config 3 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2024Config 4 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223226
2024Config 5 of 6Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline233126
2024Config 6 of 6Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline233126
2023Config 1 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243227
2023Config 2 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253429
2023Config 3 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243327
2023Config 4 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223226
2023Config 5 of 6Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline233226
2023Config 6 of 6Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline233126
2022Config 1 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253328
2022Config 2 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2022Config 3 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263630
2022Config 4 of 6Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2022Config 5 of 6Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline233226
2022Config 6 of 6Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline233226
2021Config 1 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223025
2021Config 2 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263630
2021Config 3 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2021Config 4 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253328
2020Config 1 of 2Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2020Config 2 of 2Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263630
2019Config 1 of 5Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2019Config 2 of 5Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2019Config 3 of 5Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline263630
2019Config 4 of 5Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline253428
2019Config 5 of 5Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline202923
2018Config 1 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel314336
2018Config 2 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2018Config 3 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243427
2018Config 4 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2018Config 5 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline243528
2018Config 6 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233427
2018Config 7 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233327
2018Config 8 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline283430
2018Config 9 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel304034
2018Config 10 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel304034
2018Config 11 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline213125
2018Config 12 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline213225
2018Config 13 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline202923
2018Config 14 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233527
2018Config 15 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline213225
2018Config 16 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192923
2018Config 17 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192923
2017Config 1 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel314336
2017Config 2 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233427
2017Config 3 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233427
2017Config 4 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233326
2017Config 5 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233326
2017Config 6 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel304034
2017Config 7 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel304034
2017Config 8 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline283430
2017Config 9 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233528
2017Config 10 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233326
2017Config 11 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline213125
2017Config 12 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline213225
2017Config 13 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline203024
2017Config 14 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline213225
2017Config 15 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233527
2017Config 16 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192923
2017Config 17 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline192923
2016Config 1 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223326
2016Config 2 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223326
2016Config 3 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233528
2016Config 4 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel304034
2016Config 5 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel304034
2016Config 6 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233527
2016Config 7 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel314235
2016Config 8 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline283631
2016Config 9 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233427
2016Config 10 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223326
2016Config 11 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline223225
2016Config 12 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline203023
2016Config 13 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline223225
2016Config 14 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233527
2016Config 15 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223326
2016Config 16 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202823
2016Config 17 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202923
2015Config 1 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel314134
2015Config 2 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233528
2015Config 3 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233427
2015Config 4 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223226
2015Config 5 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline233427
2015Config 6 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223226
2015Config 7 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LPremium Gasoline223226
2015Config 8 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel314336
2015Config 9 of 17Auto (S8), 4 cyl, 2.0 L4 2.0LDiesel314134
2015Config 10 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline213125
2015Config 11 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline203023
2015Config 12 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline203023
2015Config 13 of 17Auto (S8), 6 cyl, 3.0 L6 3.0LPremium Gasoline253228
2015Config 14 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline233527
2015Config 15 of 17Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline223326
2015Config 16 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202924
2015Config 17 of 17Man 6-spd, 6 cyl, 3.0 L6 3.0LPremium Gasoline202823

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.

BMW 3 Series data analysis

How BMW 3 Series combined fuel economy varies

Across 105 configurations recorded for the 2015 through 2026 BMW 3 Series, combined fuel economy runs from 23 MPG to 36 MPG. The strongest figure belongs to the 2015 BMW 3 Series (Auto (S8), 4 cyl, 2.0 L) at 36 MPG, and the weakest to the 2019 car (Auto (S8), 6 cyl, 3.0 L) at 23 MPG — a spread of 57%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the BMW 3 Series would be misleading.

What changed for 2026

Average combined fuel economy for the 2026 BMW 3 Series is 29.5 MPG, against 29.5 MPG for the 2025 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 BMW 3 Series data

This page lists every 2015 through 2026 BMW 3 Series record we hold for this measurement — 105 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 BMW 3 Series numbers

The 2015 through 2026 BMW 3 Series entries here cover the variants Auto (S8), 4 cyl, 2.0 L, Auto (S8), 6 cyl, 3.0 L, Auto (S8), 4 cyl, 3.0 L, Man 6-spd, 4 cyl, 2.0 L and Man 6-spd, 6 cyl, 3.0 L. 2018 is the busiest model year in the record with 17 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 BMW 3 Series 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 BMW 3 Series 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 mph43 MPG43 MPG0%
65 mph43 MPG40.1 MPG7%
70 mph43 MPG37.3 MPG13%
75 mph43 MPG34.8 MPG19%
80 mph43 MPG32.4 MPG25%

Our Real-World Speed MPG Adjuster re-scales the BMW 3 Series 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 3 Series MPG

What is the MPG of the BMW 3 Series?

The BMW 3 Series gets up to 36 MPG combined (31 city / 43 highway) in the 2026 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which BMW 3 Series trim has the best fuel economy?

The Auto (S8), 4 cyl, 2.0 L trim offers the best combined fuel economy at 36 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

View full BMW 3 Series specs

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