2021 Buick Encore Gas Tank Size & Fuel Capacity
Fuel tank capacity
14.0gal · 53 L
The 2021 Buick Encore has a fuel tank capacity of 14.0 gallons (53 liters) on every trim.
A full tank is good for roughly 406–420 highway miles or 336–350 miles around town, going by the EPA ratings.
14.0 gal · Smaller than 81% of 2021 models we list.
Listed separately: 2021 Buick Encore GX (13.2 gal).
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Pump & gauge parts
- FAQ
2021 Buick Encore fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
All 3 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 1SV 4dr SUV 1.4L 4cyl Turbo 6A · FWD MPG 25 / 30Range 350 / 420 mi | 1.4L 4cyl Turbo 6A | FWD | 14.0 gal53 L | 25 / 30 | 350 / 420 mi | |
| Preferred 4dr SUV 1.4L 4cyl Turbo 6A · FWD MPG 25 / 30Range 350 / 420 mi | 1.4L 4cyl Turbo 6A | FWD | 14.0 gal53 L | 25 / 30 | 350 / 420 mi | |
| Preferred 4dr SUV AWD 1.4L 4cyl Turbo 6A · AWD MPG 24 / 29Range 336 / 406 mi | 1.4L 4cyl Turbo 6A | AWD | 14.0 gal53 L | 24 / 29 | 336 / 406 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 Buick Encore 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 27 MPG, a full 14.0-gallon tank covers about 378 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 14.0 | 420 | 350 |
| 3/4 | 10.5 | 315 | 263 |
| 1/2 | 7.0 | 210 | 175 |
| 1/4 | 3.5 | 105 | 88 |
| 1/8 | 1.8 | 53 | 44 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 556 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
- 26–27 MPG
- Tailpipe CO2
- 329–344 g/mi
- EPA greenhouse score
- 5–6 of 10
- Source
- EPA ratings
What it costs to fill up a 2021 Buick Encore
$59.78 to fill the 14.0-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 |
|---|---|---|---|---|
| 14.0 gal | Regular | $4.27 | $59.78 | $44.83 |
By region, 14.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $56.28 |
| Midwest | $4.27 | $59.78 |
| Gulf CoastLowest | $3.70 | $51.80 |
| Rocky Mountain | $4.46 | $62.44 |
| West Coast | $5.42 | $75.88 |
| CaliforniaHighest | $5.89 | $82.46 |
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
- 14.0-gallon tank$59.78
- A year of driving (15,000 mi)$2,372
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Encore tank size in other years
The 2021 Encore uses the same 14.0 gal tank as every Encore since 2013.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2022 Encore | 14.0 gal | 448 mi |
| 2021 Encore | 14.0 gal | 420 mi |
| 2020 Encore | 14.0 gal | 420 mi |
| 2019 Encore | 14.0 gal | 434 mi |
| 2018 Encore | 14.0 gal | 462 mi |
| 2017 Encore | 14.0 gal | 462 mi |
| 2016 Encore | 14.0 gal | 476 mi |
2021 Buick Encore vs similar 2021 SUVs
At 14.0 gallons, the Encore's largest tank ranks third of the seven 2021 SUVs compared here. The Mitsubishi Outlander Sport carries the most (16.6 gal) and the FIAT 500X the least (12.7 gal).
| 2021 model | Tank | Longest highway range |
|---|---|---|
| Mitsubishi Outlander Sport | 15.8–16.6 gal | 498 mi |
| Subaru Crosstrek | 13.2–16.6 gal | 564 mi |
| Buick Encore | 14.0 gal | 420 mi |
| Chevrolet Trax | 14.0 gal | 434 mi |
| Ford EcoSport | 13.8 gal | 400 mi |
| Jeep Renegade | 12.7 gal | 381 mi |
| FIAT 500X | 12.7 gal | 381 mi |
Other 2021 SUVs of a similar size, one model per brand.
2021 Buick Encore fuel pump and gauge parts
These are the part numbers the makers list for the 2021 Buick Encore. Check the fuel system recalls first: recall repairs are free.
As an Amazon Associate we earn from qualifying purchases.
Frequently asked questions
What is the fuel tank capacity of the 2021 Buick Encore?
The 2021 Buick Encore holds 14.0 gallons (53 liters) on every trim we list.
How many gallons and liters does the 2021 Buick Encore gas tank hold?
The 2021 Buick Encore tank holds 53 liters, or 14.0 gallons in US gallons.
Does AWD change the 2021 Buick Encore gas tank?
No. FWD and AWD versions of the 2021 Buick Encore use the same 14.0 gal tank.
How far can a 2021 Buick Encore go on a full tank?
About 406–420 miles on the highway and 336–350 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 Buick Encore go on a quarter tank?
About 105 highway miles or 88 in town from the 14.0-gallon tank, which has roughly 3.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 Buick Encore take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2021 Buick Encore?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 14.0-gallon tank from empty costs $59.78. It ranges from $51.80 in the Gulf Coast to $82.46 in California.
How much does a full tank of gas weigh in a 2021 Buick Encore?
About 87 pounds for the 14.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 Buick Encore have a bigger gas tank than the Chevrolet Trax?
No, they match: both top out at 14.0 gallons in 2021.
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).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.