2018 Mazda CX-5 2WDFuel Economy & MPG Ratings

Diesel Small Sport Utility Vehicle 2WDFront-Wheel Drive

City

MPG

Highway

MPG

Combined

MPG

Trim Comparison

Automatic (S6)

Diesel Diesel

City

Hwy

Comb

Fuel cost: $2,900/yr

Automatic (S6)

Regular

City

Hwy

Comb

Fuel cost: $2,400/yr

Trim	Engine	City	Hwy	Combined	Fuel Cost/yr
Automatic (S6)	Diesel Diesel	28	31	29	$2,900
Automatic (S6)	Regular	25	31	28	$2,400

Annual Fuel Cost

$2,900

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

5-Year Fuel Savings

$-2,500

vs. average new vehicle

EPA Fuel Economy Score: 6/10

GHG Score: 5/10

Environment

CO₂ Tailpipe Emissions: 348 g/mile
Annual Petroleum Consumption: 12.3 barrels

Specifications

Engine: 2.5L 4-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: 2.2L, 4-cylinder
Fuel Type: Diesel

Annual Fuel Cost by State

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

National AvgEPA default

$4.490/gal$2,322/yr

California

$5.957/gal$3,081/yr

Texas

$3.888/gal$2,011/yr

Florida

$4.136/gal$2,139/yr

New York

$4.522/gal$2,339/yr

Ohio

$4.510/gal$2,333/yr

Washington

$5.591/gal$2,892/yr

Colorado

$4.618/gal$2,389/yr

Minnesota

$4.344/gal$2,247/yr

Massachusetts

$4.448/gal$2,301/yr

State	Gas Price	Annual Cost	vs. National Avg
National AvgEPA default	$4.490/gal	$2,322/yr	—
California	$5.957/gal	$3,081/yrHIGHEST	+$759
Texas	$3.888/gal	$2,011/yrLOWEST	$-311
Florida	$4.136/gal	$2,139/yr	$-183
New York	$4.522/gal	$2,339/yr	+$17
Ohio	$4.510/gal	$2,333/yr	+$11
Washington	$5.591/gal	$2,892/yr	+$570
Colorado	$4.618/gal	$2,389/yr	+$67
Minnesota	$4.344/gal	$2,247/yr	$-75
Massachusetts	$4.448/gal	$2,301/yr	$-21