Buick LaCrosse Annual Fuel Cost

Running a 2019 Buick LaCrosse costs about $2,100 per year in fuel, based on 15,000 miles of driving at average U.S. fuel prices.

Latest model year (2019):

The Buick LaCrosse costs an estimated $2,100/year in fuel (308 g CO₂/mi).

Verifiedfueleconomy.gov · Verified August 11, 2026

Buick LaCrosse Fuel Cost — All Years

YearTrimEngineFuelMPG Comb.Annual CostCO₂ (g/mi)GHG Score
2019Config 1 of 3Auto (S6), 4 cyl, 2.5 L4 2.5LRegular Gasoline29$2,1003086
2019Config 2 of 3Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline23$2,6503835
2019Config 3 of 3Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline24$2,5503745
2018Config 1 of 3Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline23$2,6503865
2018Config 2 of 3Auto (S9), 6 cyl, 3.6 L6 3.6LRegular Gasoline24$2,5503675
2018Config 3 of 3Auto 6-spd, 4 cyl, 2.5 L4 2.5LRegular Gasoline29$2,1003066
2017Config 1 of 2Auto (S8), 6 cyl, 3.6 L6 3.6LRegular Gasoline25$2,4503605
2017Config 2 of 2Auto (S8), 6 cyl, 3.6 L6 3.6LRegular Gasoline23$2,6503785
2016Config 1 of 4Auto (S6), 4 cyl, 2.4 L4 2.4LRegular Gasoline28$2,2003127
2016Config 2 of 4Auto (S6), 6 cyl, 3.6 L6 3.6LRegular Gasoline20$3,1004414
2016Config 3 of 4Auto (S6), 6 cyl, 3.6 L6 3.6LRegular Gasoline21$2,9504225
2016Config 4 of 4Auto (S6), 6 cyl, 3.6 L6 3.6LRegular Gasoline21$2,9504105
2015Config 1 of 4Auto (S6), 4 cyl, 2.4 L4 2.4LRegular Gasoline28$2,2003147
2015Config 2 of 4Auto (S6), 6 cyl, 3.6 L6 3.6LRegular Gasoline21$2,9504195
2015Config 3 of 4Auto (S6), 6 cyl, 3.6 L6 3.6LRegular Gasoline21$2,9504225
2015Config 4 of 4Auto (S6), 6 cyl, 3.6 L6 3.6LRegular Gasoline20$3,1004445

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.

Buick LaCrosse data analysis

How Buick LaCrosse estimated annual fuel cost varies

Across 16 configurations recorded for the 2015 through 2019 Buick LaCrosse, estimated annual fuel cost runs from $2,100 to $3,100. The strongest figure belongs to the 2019 Buick LaCrosse (Auto (S6), 4 cyl, 2.5 L) at $2,100, and the weakest to the 2015 car (Auto (S6), 6 cyl, 3.6 L) at $3,100 — a spread of 32%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Buick LaCrosse would be misleading.

What changed for 2019

Average estimated annual fuel cost for the 2019 Buick LaCrosse is $2,433, against $2,433 for the 2018 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 Buick LaCrosse data

This page lists every 2015 through 2019 Buick LaCrosse record we hold for this measurement — 16 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 Buick LaCrosse numbers

The 2015 through 2019 Buick LaCrosse entries here cover the variants Auto (S6), 4 cyl, 2.5 L, Auto (S9), 6 cyl, 3.6 L, Auto 6-spd, 4 cyl, 2.5 L, Auto (S8), 6 cyl, 3.6 L, Auto (S6), 4 cyl, 2.4 L and Auto (S6), 6 cyl, 3.6 L. 2016 is the busiest model year in the record with 4 separate measured configurations, which is why a single quoted estimated annual fuel cost 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 Buick LaCrosse 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 Buick LaCrosse 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.

Frequently Asked Questions About LaCrosse Fuel Cost

How much does it cost to fuel the Buick LaCrosse?

The estimated annual fuel cost for the Buick LaCrosse is $2,100 per year, based on 15,000 miles of driving and average fuel prices. Costs vary by trim and engine.

How much CO₂ does the Buick LaCrosse produce?

The Buick LaCrosse produces approximately 308 grams of CO₂ per mile. Lower numbers mean fewer emissions. See the table for per-trim details.

View full Buick LaCrosse specs

Browse other makes