2003 Ford MustangFuel Economy & MPG Ratings

Gasoline Subcompact CarsRear-Wheel Drive
2003 Ford Mustang

Photo: Hans-Jürgen Neubert. CC BY 4.0. via Wikimedia Commons

City
17
MPG
Highway
27
MPG
Combined
21
MPG

Real-World MPG

Based on 1 owner report via EPA fueleconomy.gov

19.4MPG average-7.7% vs EPA label
EPA combined: 21 MPG · Owner reported avg: 19.4 MPG

Driving mix: City 56% / Highway 44%

Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.

Owner reported MPG for this vehicle averages 19.4 real world MPG based on 1 owner report. EPA combined rating is 21 MPG.

Trim Comparison

Manual 5-spd
Regular
City
17
Hwy
27
Comb
21
Fuel cost: $3,200/yr
Automatic 4-spd
Regular
City
17
Hwy
25
Comb
20
Fuel cost: $3,400/yr
Manual 5-spd
Regular
City
16
Hwy
23
Comb
19
Fuel cost: $3,550/yr
Manual 5-spd
Regular
City
15
Hwy
23
Comb
18
Fuel cost: $3,750/yr
Automatic 4-spd
Regular
City
16
Hwy
22
Comb
18
Fuel cost: $3,750/yr
Automatic 4-spd
Regular
City
16
Hwy
21
Comb
18
Fuel cost: $3,750/yr
Manual 6-spd
Premium
City
15
Hwy
21
Comb
17
Fuel cost: $4,800/yr
Annual Fuel Cost
$3,200

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

5-Year Fuel Savings
$-4,000

vs. average new vehicle

EPA Fuel Economy Score: -1/10
GHG Score: -1/10

Environment

CO₂ Tailpipe Emissions
423 g/mile
Annual Petroleum Consumption
14.2 barrels

Specifications

Engine
4.6L 6-cyl
Transmission
4-speed Automatic
Drivetrain
RWD
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
3.8L, 6-cylinder
Induction Type
2 VALVE
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$3,207/yr
California
$5.957/gal$4,255/yr
Texas
$3.888/gal$2,777/yr
Florida
$4.136/gal$2,954/yr
New York
$4.522/gal$3,230/yr
Ohio
$4.510/gal$3,221/yr
Washington
$5.591/gal$3,994/yr
Colorado
$4.618/gal$3,299/yr
Minnesota
$4.344/gal$3,103/yr
Massachusetts
$4.448/gal$3,177/yr

Calculated at 15,000 miles/year (EPA standard assumption) using 21 MPG combined. Regular gasoline prices. Actual costs vary.

Related

Ford Mustang MPG History
See how this model's fuel economy changed by year

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