2021 GMC Canyon Gas Tank Size & Fuel Capacity
Fuel tank capacity
21.0gal · 79 L
The 2021 GMC Canyon has a fuel tank capacity of 21.0 gallons (79 liters) on every trim.
A full tank is good for roughly 462–525 highway miles or 336–399 miles around town, going by the EPA ratings.
21.0 gal · Bigger than 68% of 2021 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
2021 GMC Canyon fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
- Cab
- no difference
- Bed
- no difference
- Engine
- no difference
All 14 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| AT4 4dr Crew Cab 4WD 5.1 ft. SB w/Cloth 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| AT4 4dr Crew Cab 4WD 5.1 ft. SB w/Leather 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| AT4 4dr Crew Cab 4WD 6.2 ft. SB w/Cloth 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| AT4 4dr Crew Cab 4WD 6.2 ft. SB w/Leather 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| Denali 4dr Crew Cab 4WD 5.1 ft. SB 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| Denali 4dr Crew Cab 4WD 6.2 ft. SB 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| Denali 4dr Crew Cab 5.1 ft. SB 3.6L 6cyl 8A · RWD MPG 18 / 25Range 378 / 525 mi | 3.6L 6cyl 8A | RWD | 21.0 gal79 L | 18 / 25 | 378 / 525 mi | |
| Elevation 4dr Crew Cab 4WD 5.1 ft. SB 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| Elevation 4dr Crew Cab 4WD 6.2 ft. SB 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| Elevation 4dr Crew Cab 5.1 ft. SB 2.5L 4cyl 6A · RWD MPG 19 / 25Range 399 / 525 mi | 2.5L 4cyl 6A | RWD | 21.0 gal79 L | 19 / 25 | 399 / 525 mi | |
| Elevation 4dr Extended Cab SB 2.5L 4cyl 6A · RWD MPG 19 / 25Range 399 / 525 mi | 2.5L 4cyl 6A | RWD | 21.0 gal79 L | 19 / 25 | 399 / 525 mi | |
| Elevation Standard 4dr Crew Cab 5.1 ft. SB 2.5L 4cyl 6A · RWD MPG 19 / 25Range 399 / 525 mi | 2.5L 4cyl 6A | RWD | 21.0 gal79 L | 19 / 25 | 399 / 525 mi | |
| Elevation Standard 4dr Extended Cab 4WD SB 3.6L 6cyl 8A · 4WD MPG 16 / 22Range 336 / 462 mi | 3.6L 6cyl 8A | 4WD | 21.0 gal79 L | 16 / 22 | 336 / 462 mi | |
| Elevation Standard 4dr Extended Cab SB 2.5L 4cyl 6A · RWD MPG 19 / 25Range 399 / 525 mi | 2.5L 4cyl 6A | RWD | 21.0 gal79 L | 19 / 25 | 399 / 525 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 2021 GMC Canyon 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 18 MPG, a full 21.0-gallon tank covers about 378 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 21.0 | 462 | 336 |
| 3/4 | 15.8 | 347 | 252 |
| 1/2 | 10.5 | 231 | 168 |
| 1/4 | 5.3 | 116 | 84 |
| 1/8 | 2.6 | 58 | 42 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 833 gallons, roughly 40 full tanks.
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
- 18–22 MPG
- Tailpipe CO2
- 413–494 g/mi
- EPA greenhouse score
- 3–4 of 10
- Source
- EPA ratings
What it costs to fill up a 2021 GMC Canyon
$89.67 to fill the 21.0-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 |
|---|---|---|---|---|
| 21.0 gal | Regular | $4.27 | $89.67 | $67.25 |
By region, 21.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $84.42 |
| Midwest | $4.27 | $89.67 |
| Gulf CoastLowest | $3.70 | $77.70 |
| Rocky Mountain | $4.46 | $93.66 |
| West Coast | $5.42 | $113.82 |
| CaliforniaHighest | $5.89 | $123.69 |
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
- 21.0-gallon tank$89.67
- A year of driving (15,000 mi)$3,558
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Canyon tank size in other years
The 2021 Canyon uses the same 21.0 gal tank as every Canyon since 2015.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2026 Canyon | 21.4 gal | 492 mi |
| 2025 Canyon | 21.4 gal | 492 mi |
| 2024 Canyon | 21.4 gal | 492 mi |
| 2023 Canyon | 21.4 gal | 492 mi |
| 2022 Canyon | 21.0 gal | 525 mi |
| 2021 Canyon | 21.0 gal | 525 mi |
| 2020 Canyon | 21.0 gal | 546 mi |
| 2019 Canyon | 21.0 gal | 546 mi |
| 2018 Canyon | 21.0 gal | 546 mi |
| 2017 Canyon | 21.0 gal | 546 mi |
| 2016 Canyon | 21.0 gal | 567 mi |
2021 GMC Canyon vs similar 2021 pickups
At 21.0 gallons, the Canyon's largest tank ranks fourth of the seven 2021 pickups compared here. The Jeep Gladiator carries the most (22.0 gal) and the Ford Ranger the least (18.0 gal).
| 2021 model | Tank | Longest highway range |
|---|---|---|
| Jeep Gladiator | 22.0 gal | 506 mi |
| Toyota Tacoma | 21.1 gal | 506 mi |
| Nissan Frontier | 21.1 gal | 506 mi |
| GMC Canyon | 21.0 gal | 525 mi |
| Chevrolet Colorado | 21.0 gal | 525 mi |
| Honda Ridgeline | 19.5 gal | 468 mi |
| Ford Ranger | 18.0 gal | 468 mi |
Other 2021 pickups of a similar size, one model per brand.
2021 GMC Canyon fuel system recalls
None of the 2 recalls NHTSA lists for the 2021 GMC Canyon involve the fuel system.
2021 GMC Canyon fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2021 GMC Canyon, 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 2021 GMC Canyon?
The 2021 GMC Canyon holds 21.0 gallons (79 liters) on every trim we list.
How many gallons and liters does the 2021 GMC Canyon gas tank hold?
The 2021 GMC Canyon tank holds 79 liters, or 21.0 gallons in US gallons.
Does 4WD change the 2021 GMC Canyon gas tank?
No. 4WD and RWD versions of the 2021 GMC Canyon use the same 21.0 gal tank.
How far can a 2021 GMC Canyon go on a full tank?
About 462–525 miles on the highway and 336–399 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 2021 GMC Canyon go on a quarter tank?
About 116 highway miles or 84 in town from the 21.0-gallon tank, which has roughly 5.3 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 GMC Canyon take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2021 GMC Canyon?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 21.0-gallon tank from empty costs $89.67. It ranges from $77.70 in the Gulf Coast to $123.69 in California.
How much does a full tank of gas weigh in a 2021 GMC Canyon?
About 130 pounds for the 21.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 GMC Canyon have a bigger gas tank than the Chevrolet Colorado?
No, they match: both top out at 21.0 gallons in 2021.
Has the 2021 GMC Canyon had a fuel pump or fuel system recall?
No. None of the 2 recalls NHTSA lists for the 2021 GMC Canyon 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).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.