2015 Mazda CX-9 2WDFuel Economy & MPG Ratings

Gasoline Small Sport Utility Vehicle 2WDFront-Wheel Drive

Photo: TuRbO_J from Adelaide, Australia. CC BY 2.0. via Wikimedia Commons

City

MPG

Highway

MPG

Combined

MPG

Trim Comparison

Automatic (S6)

Regular

City

Hwy

Comb

Fuel cost: $3,550/yr

Trim	Engine	City	Hwy	Combined	Fuel Cost/yr
Automatic (S6)	Regular	17	24	19	$3,550

Annual Fuel Cost

$3,550

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

5-Year Fuel Savings

$-5,750

vs. average new vehicle

EPA Fuel Economy Score: 4/10

GHG Score: 4/10

Environment

CO₂ Tailpipe Emissions: 456 g/mile
Annual Petroleum Consumption: 15.7 barrels

Specifications

Engine: 3.7L 6-cyl
Transmission: 6-speed Automatic
Drivetrain: FWD
Body Style: SUV/Crossover
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: 3.7L, 6-cylinder
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$3,545/yr

California

$5.957/gal$4,703/yr

Texas

$3.888/gal$3,069/yr

Florida

$4.136/gal$3,265/yr

New York

$4.522/gal$3,570/yr

Ohio

$4.510/gal$3,561/yr

Washington

$5.591/gal$4,414/yr

Colorado

$4.618/gal$3,646/yr

Minnesota

$4.344/gal$3,429/yr

Massachusetts

$4.448/gal$3,512/yr

State	Gas Price	Annual Cost	vs. National Avg
National AvgEPA default	$4.490/gal	$3,545/yr	—
California	$5.957/gal	$4,703/yrHIGHEST	+$1,158
Texas	$3.888/gal	$3,069/yrLOWEST	$-476
Florida	$4.136/gal	$3,265/yr	$-280
New York	$4.522/gal	$3,570/yr	+$25
Ohio	$4.510/gal	$3,561/yr	+$16
Washington	$5.591/gal	$4,414/yr	+$869
Colorado	$4.618/gal	$3,646/yr	+$101
Minnesota	$4.344/gal	$3,429/yr	$-116
Massachusetts	$4.448/gal	$3,512/yr	$-33