2003 GMC Envoy Gas Tank Size & Fuel Capacity
Fuel tank capacity
22.0gal · 83 L
The 2003 GMC Envoy has a fuel tank capacity of 22.0 gallons (83 liters) on every trim.
A full tank is good for roughly 418–440 highway miles or 286–308 miles around town, going by the EPA ratings.
22.0 gal · Bigger than 67% of 2003 models we list.
Listed separately: 2003 GMC Envoy XL (25.0 gal).
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- Pump & gauge parts
- FAQ
2003 GMC Envoy fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
All 4 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| SLE 4WD 4dr SUV 4.2L 6cyl 4A · 4WD MPG 13 / 19Range 286 / 418 mi | 4.2L 6cyl 4A | 4WD | 22.0 gal83 L | 13 / 19 | 286 / 418 mi | |
| SLE Rwd 4dr SUV 4.2L 6cyl 4A · RWD MPG 14 / 20Range 308 / 440 mi | 4.2L 6cyl 4A | RWD | 22.0 gal83 L | 14 / 20 | 308 / 440 mi | |
| SLT 4WD 4dr SUV 4.2L 6cyl 4A · 4WD MPG 13 / 19Range 286 / 418 mi | 4.2L 6cyl 4A | 4WD | 22.0 gal83 L | 13 / 19 | 286 / 418 mi | |
| SLT Rwd 4dr SUV 4.2L 6cyl 4A · RWD MPG 14 / 20Range 308 / 440 mi | 4.2L 6cyl 4A | RWD | 22.0 gal83 L | 14 / 20 | 308 / 440 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 GMC Envoy 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 15 MPG, a full 22.0-gallon tank covers about 330 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 22.0 | 418 | 286 |
| 3/4 | 16.5 | 314 | 215 |
| 1/2 | 11.0 | 209 | 143 |
| 1/4 | 5.5 | 105 | 72 |
| 1/8 | 2.8 | 52 | 36 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,000 gallons, roughly 45 full tanks.
In real driving: owners who log fill-ups at fueleconomy.gov average 18.1 MPG in the Envoy (8 drivers), about 398 miles on a full 22.0-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
- 15–16 MPG
- Tailpipe CO2
- 555–592 g/mi
- Source
- EPA ratings
What it costs to fill up a 2003 GMC Envoy
$93.94 to fill the 22.0-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 |
|---|---|---|---|---|
| 22.0 gal | Regular | $4.27 | $93.94 | $70.45 |
By region, 22.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $88.44 |
| Midwest | $4.27 | $93.94 |
| Gulf CoastLowest | $3.70 | $81.40 |
| Rocky Mountain | $4.46 | $98.12 |
| West Coast | $5.42 | $119.24 |
| CaliforniaHighest | $5.89 | $129.58 |
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
- 22.0-gallon tank$93.94
- A year of driving (15,000 mi)$4,270
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Envoy tank size in other years
The tank changed for 2003: 22.0 gal, up from 18.7 gal on the 2002 Envoy.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2008 Envoy | 22.0 gal | 440 mi |
| 2007 Envoy | 22.0 gal | 440 mi |
| 2006 Envoy | 22.0 gal | 440 mi |
| 2005 Envoy | 22.0 gal | 440 mi |
| 2004 Envoy | 22.0 gal | 418 mi |
| 2003 Envoy | 22.0 gal | 440 mi |
| 2002 Envoy | 18.7 gal | 374 mi |
| 2000 Envoy | 18.0 gal | 324 mi |
| 1999 Envoy | 18.0 gal | 342 mi |
| 1998 Envoy | 18.0 gal | Not rated |
2003 GMC Envoy vs similar 2003 SUVs
At 22.0 gallons, the Envoy's largest tank ranks fifth of the seven 2003 SUVs compared here. The Chevrolet Trailblazer carries the most (25.0 gal) and the Honda Pilot the least (19.2 gal).
| 2003 model | Tank | Longest highway range |
|---|---|---|
| Chevrolet Trailblazer | 22.0–25.0 gal | 475 mi |
| Dodge Durango | 25.0 gal | 450 mi |
| Mitsubishi Montero | 23.8 gal | 428 mi |
| Toyota 4Runner | 23.0 gal | 460 mi |
| GMC Envoy | 22.0 gal | 440 mi |
| Oldsmobile Bravada | 22.0 gal | 440 mi |
| Honda Pilot | 19.2 gal | 403 mi |
Other 2003 SUVs of a similar size, one model per brand.
2003 GMC Envoy fuel system recalls
None of the 7 recalls NHTSA lists for the 2003 GMC Envoy involve the fuel system.
2003 GMC Envoy fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2003 GMC Envoy, 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 GMC Envoy?
The 2003 GMC Envoy holds 22.0 gallons (83 liters) on every trim we list.
How many gallons and liters does the 2003 GMC Envoy gas tank hold?
The 2003 GMC Envoy tank holds 83 liters, or 22.0 gallons in US gallons.
Does 4WD change the 2003 GMC Envoy gas tank?
No. 4WD and RWD versions of the 2003 GMC Envoy use the same 22.0 gal tank.
How far can a 2003 GMC Envoy go on a full tank?
About 418–440 miles on the highway and 286–308 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 GMC Envoy go on a quarter tank?
About 105 highway miles or 72 in town from the 22.0-gallon tank, which has roughly 5.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
How many miles does a 2003 GMC Envoy really get on a tank?
Drivers who log their fill-ups at fueleconomy.gov average 18.1 MPG in the 2003 GMC Envoy (8 drivers), which works out to about 398 miles on a full 22.0-gallon tank.
What gas does the 2003 GMC Envoy take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2003 GMC Envoy?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 22.0-gallon tank from empty costs $93.94. It ranges from $81.40 in the Gulf Coast to $129.58 in California.
How much does a full tank of gas weigh in a 2003 GMC Envoy?
About 136 pounds for the 22.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2003 GMC Envoy have a bigger gas tank than the Chevrolet Trailblazer?
No. The 2003 Chevrolet Trailblazer holds up to 25.0 gallons; the 2003 GMC Envoy holds up to 22.0.
Has the 2003 GMC Envoy had a fuel pump or fuel system recall?
No. None of the 7 recalls NHTSA lists for the 2003 GMC Envoy 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 (GMC 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.