2003 Ford Mustang Gas Tank Size & Fuel Capacity
Fuel tank capacity
15.7gal · 59 L
The 2003 Ford Mustang has a fuel tank capacity of 15.7 gallons (59 liters) on every trim.
A full tank is good for roughly 330–424 highway miles or 236–267 miles around town, going by the EPA ratings.
15.7 gal · Smaller than 84% of 2003 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- Pump & gauge parts
- FAQ
2003 Ford Mustang fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Engine
- no difference
All 14 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | Fuel | MPG city / hwy | Range city / hwy |
|---|---|---|---|---|---|---|
| 2dr Coupe 3.8L 6cyl 5M · RWD · Regular MPG 17 / 27Range 267 / 424 mi | 3.8L 6cyl 5M | RWD | 15.7 gal59 L | Regular | 17 / 27 | 267 / 424 mi |
| Deluxe 2dr Convertible 3.8L 6cyl 5M · RWD · Regular MPG 17 / 27Range 267 / 424 mi | 3.8L 6cyl 5M | RWD | 15.7 gal59 L | Regular | 17 / 27 | 267 / 424 mi |
| Deluxe 2dr Coupe 3.8L 6cyl 5M · RWD · Regular MPG 17 / 27Range 267 / 424 mi | 3.8L 6cyl 5M | RWD | 15.7 gal59 L | Regular | 17 / 27 | 267 / 424 mi |
| GT Deluxe 2dr Convertible 4.6L 8cyl 5M · RWD · Regular MPG 16 / 23Range 251 / 361 mi | 4.6L 8cyl 5M | RWD | 15.7 gal59 L | Regular | 16 / 23 | 251 / 361 mi |
| GT Deluxe 2dr Coupe 4.6L 8cyl 5M · RWD · Regular MPG 16 / 23Range 251 / 361 mi | 4.6L 8cyl 5M | RWD | 15.7 gal59 L | Regular | 16 / 23 | 251 / 361 mi |
| GT Premium 2dr Convertible 4.6L 8cyl 5M · RWD · Regular MPG 16 / 23Range 251 / 361 mi | 4.6L 8cyl 5M | RWD | 15.7 gal59 L | Regular | 16 / 23 | 251 / 361 mi |
| GT Premium 2dr Coupe 4.6L 8cyl 5M · RWD · Regular MPG 16 / 23Range 251 / 361 mi | 4.6L 8cyl 5M | RWD | 15.7 gal59 L | Regular | 16 / 23 | 251 / 361 mi |
| Mach 1 2dr Coupe 4.6L 8cyl 5M · RWD · Regular MPG 15 / 23Range 236 / 361 mi | 4.6L 8cyl 5M | RWD | 15.7 gal59 L | Regular | 15 / 23 | 236 / 361 mi |
| Premium 2dr Convertible 3.8L 6cyl 4A · RWD · Regular MPG 17 / 25Range 267 / 393 mi | 3.8L 6cyl 4A | RWD | 15.7 gal59 L | Regular | 17 / 25 | 267 / 393 mi |
| Premium 2dr Coupe 3.8L 6cyl 5M · RWD · Regular MPG 17 / 27Range 267 / 424 mi | 3.8L 6cyl 5M | RWD | 15.7 gal59 L | Regular | 17 / 27 | 267 / 424 mi |
| SVT Cobra 10th Anniversary 2dr Convertible 4.6L 8cyl S/C 6M · RWD · Premium (required) MPG 15 / 21Range 236 / 330 mi | 4.6L 8cyl S/C 6M | RWD | 15.7 gal59 L | Premiumrequired | 15 / 21 | 236 / 330 mi |
| SVT Cobra 10th Anniversary 2dr Coupe 4.6L 8cyl S/C 6M · RWD · Premium (required) MPG 15 / 21Range 236 / 330 mi | 4.6L 8cyl S/C 6M | RWD | 15.7 gal59 L | Premiumrequired | 15 / 21 | 236 / 330 mi |
| SVT Cobra 2dr Convertible 4.6L 8cyl S/C 6M · RWD · Premium (required) MPG 15 / 21Range 236 / 330 mi | 4.6L 8cyl S/C 6M | RWD | 15.7 gal59 L | Premiumrequired | 15 / 21 | 236 / 330 mi |
| SVT Cobra 2dr Coupe 4.6L 8cyl S/C 6M · RWD · Premium (required) MPG 15 / 21Range 236 / 330 mi | 4.6L 8cyl S/C 6M | RWD | 15.7 gal59 L | Premiumrequired | 15 / 21 | 236 / 330 mi |
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.
How far a 2003 Ford Mustang goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 21 MPG, a full 15.7-gallon tank covers about 330 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.7 | 424 | 267 |
| 3/4 | 11.8 | 318 | 200 |
| 1/2 | 7.9 | 212 | 133 |
| 1/4 | 3.9 | 106 | 67 |
| 1/8 | 2.0 | 53 | 33 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 714 gallons, roughly 45 full tanks.
In real driving: owners who log fill-ups at fueleconomy.gov average 21.1 MPG in the Mustang (20 drivers), about 331 miles on a full 15.7-gallon tank.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
- EPA combined
- 17–21 MPG
- Tailpipe CO2
- 423–523 g/mi
- Gas guzzler tax
- Yes
- Source
- EPA ratings
What it costs to fill up a 2003 Ford Mustang
$67.04 to fill the 15.7-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 15.7 gal | Regular | $4.27 | $67.04 | $50.28 |
| 15.7 gal | Premium | $5.28 | $82.90 | $62.17 |
By region, 15.7-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $63.11 |
| Midwest | $4.27 | $67.04 |
| Gulf CoastLowest | $3.70 | $58.09 |
| Rocky Mountain | $4.46 | $70.02 |
| West Coast | $5.42 | $85.09 |
| CaliforniaHighest | $5.89 | $92.47 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 15.7-gallon tank$67.04
- A year of driving (15,000 mi)$3,050
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Mustang tank size in other years
The tank changed for 2003: 15.7 gal, up from 15.5 gal on the 2002 Mustang.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2008 Mustang | 16.0 gal | 416 mi |
| 2007 Mustang | 16.0 gal | 400 mi |
| 2006 Mustang | 16.0 gal | 416 mi |
| 2005 Mustang | 16.0 gal | 416 mi |
| 2004 Mustang | 15.7 gal | 424 mi |
| 2003 Mustang | 15.7 gal | 424 mi |
| 2002 Mustang | 15.5 gal | 419 mi |
| 2001 Mustang | 15.7 gal | 408 mi |
| 2000 Mustang | 15.7 gal | 408 mi |
| 1999 Mustang | 15.7 gal | 424 mi |
| 1998 Mustang | 15.7 gal | 424 mi |
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2020
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- 2016
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- 2003
- 2002
- 2001
- 2000
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- 1993
- 1992
- 1991
- 1990
2003 Ford Mustang vs similar 2003 coupes
At 15.7 gallons, the Mustang's largest tank ranks third of the four 2003 coupes compared here. The Toyota Camry Solara carries the most (18.5 gal) and the Oldsmobile Alero the least (14.1 gal).
| 2003 model | Tank | Longest highway range |
|---|---|---|
| Toyota Camry Solara | 18.5 gal | 555 mi |
| Chevrolet Corvette | 18.0 gal | 468 mi |
| Ford Mustang | 15.7 gal | 424 mi |
| Oldsmobile Alero | 14.1 gal | 423 mi |
Other 2003 coupes of a similar size, one model per brand.
2003 Ford Mustang fuel system recalls
None of the 1 recall NHTSA lists for the 2003 Ford Mustang involve the fuel system.
2003 Ford Mustang fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2003 Ford Mustang, so a failed pump or gauge is a normal repair. These are the part numbers the makers list for it.
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Frequently asked questions
What is the fuel tank capacity of the 2003 Ford Mustang?
The 2003 Ford Mustang holds 15.7 gallons (59 liters) on every trim we list.
How many gallons and liters does the 2003 Ford Mustang gas tank hold?
The 2003 Ford Mustang tank holds 59 liters, or 15.7 gallons in US gallons.
How far can a 2003 Ford Mustang go on a full tank?
About 330–424 miles on the highway and 236–267 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 2003 Ford Mustang go on a quarter tank?
About 106 highway miles or 67 in town from the 15.7-gallon tank, which has roughly 3.9 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
How many miles does a 2003 Ford Mustang really get on a tank?
Drivers who log their fill-ups at fueleconomy.gov average 21.1 MPG in the 2003 Ford Mustang (20 drivers), which works out to about 331 miles on a full 15.7-gallon tank.
What gas does the 2003 Ford Mustang take?
Regular unleaded, or Premium unleaded (required), depending on the engine. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2003 Ford Mustang?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 15.7-gallon tank from empty costs $67.04. It ranges from $58.09 in the Gulf Coast to $92.47 in California.
How much does a full tank of gas weigh in a 2003 Ford Mustang?
About 97 pounds for the 15.7-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2003 Ford Mustang have a bigger gas tank than the Chevrolet Corvette?
No. The 2003 Chevrolet Corvette holds up to 18.0 gallons; the 2003 Ford Mustang holds up to 15.7.
Has the 2003 Ford Mustang had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 2003 Ford Mustang involve the fuel system.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
- Recalls: NHTSA recall database (Ford fuel system recalls).
- Real-world MPG: driver-reported fill-ups shared at fueleconomy.gov (My MPG).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.