2018 Buick LaCrosse AWDFuel Economy & MPG Ratings

Gasoline Midsize CarsAll-Wheel Drive

City

MPG

Highway

MPG

Combined

MPG

Trim Comparison

Automatic (S9)

Regular

City

Hwy

Comb

Fuel cost: $2,950/yr

Trim	Engine	City	Hwy	Combined	Fuel Cost/yr
Automatic (S9)	Regular	20	29	23	$2,950

Annual Fuel Cost

$2,950

Based on gasoline at $3.67/gal, 15,000 miles/year

5-Year Fuel Savings

$-2,750

vs. average new vehicle

EPA Fuel Economy Score: 5/10

GHG Score: 5/10

Environment

CO₂ Tailpipe Emissions: 386 g/mile
Annual Petroleum Consumption: 12.9 barrels

Specifications

Engine: 3.6L 6-cyl
Transmission: 9-speed Automatic
Drivetrain: AWD
Body Style: Sedan
GVWR: Class 1 (≤6,000 lbs)

Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.

Engine & Efficiency Details

Source: EPA fueleconomy.gov

Engine Size: 3.6L, 6-cylinder
Induction Type: Direct Injection
Efficiency Tech: Auto Start-Stop
Fuel Type: Regular Gasoline

Annual Fuel Cost by State

Prices as of week ending May 18, 2026 · Source: EIA

National AvgEPA default

$4.490/gal$2,928/yr

California

$5.957/gal$3,885/yr

Texas

$3.888/gal$2,536/yr

Florida

$4.136/gal$2,697/yr

New York

$4.522/gal$2,949/yr

Ohio

$4.510/gal$2,941/yr

Washington

$5.591/gal$3,646/yr

Colorado

$4.618/gal$3,012/yr

Minnesota

$4.344/gal$2,833/yr

Massachusetts

$4.448/gal$2,901/yr

State	Gas Price	Annual Cost	vs. National Avg
National AvgEPA default	$4.490/gal	$2,928/yr	—
California	$5.957/gal	$3,885/yrHIGHEST	+$957
Texas	$3.888/gal	$2,536/yrLOWEST	$-392
Florida	$4.136/gal	$2,697/yr	$-231
New York	$4.522/gal	$2,949/yr	+$21
Ohio	$4.510/gal	$2,941/yr	+$13
Washington	$5.591/gal	$3,646/yr	+$718
Colorado	$4.618/gal	$3,012/yr	+$84
Minnesota	$4.344/gal	$2,833/yr	$-95
Massachusetts	$4.448/gal	$2,901/yr	$-27