2020 BMW X4 Gas Tank Size & Fuel Capacity
Fuel tank capacity
17.2gal · 65 L
The 2020 BMW X4 has a fuel tank capacity of 17.2 gallons (65 liters) on every trim.
A full tank is good for roughly 464–482 highway miles or 361–396 miles around town, going by the EPA ratings.
17.2 gal · Smaller than 56% of 2020 models we list.
Listed separately: 2020 BMW X4 M (17.2 gal).
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2020 BMW X4 fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Engine
- no difference
All 2 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| M40i 4dr SUV AWD 3.0L 6cyl Turbo 8A · AWD MPG 21 / 27Range 361 / 464 mi | 3.0L 6cyl Turbo 8A | AWD | 17.2 gal65 L | 21 / 27 | 361 / 464 mi | |
| xDrive30i 4dr SUV AWD 2.0L 4cyl Turbo 8A · AWD MPG 23 / 28Range 396 / 482 mi | 2.0L 4cyl Turbo 8A | AWD | 17.2 gal65 L | 23 / 28 | 396 / 482 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 2020 BMW X4 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 25 MPG, a full 17.2-gallon tank covers about 430 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 17.2 | 482 | 396 |
| 3/4 | 12.9 | 361 | 297 |
| 1/2 | 8.6 | 241 | 198 |
| 1/4 | 4.3 | 120 | 99 |
| 1/8 | 2.2 | 60 | 49 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 600 gallons, roughly 35 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
- 23–25 MPG
- Tailpipe CO2
- 356–379 g/mi
- EPA greenhouse score
- 5 of 10
- Source
- EPA ratings
What it costs to fill up a 2020 BMW X4
$90.82 to fill the 17.2-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 17.2 gal | Premium | $5.28 | $90.82 | $68.11 |
By region, 17.2-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $84.80 |
| Midwest | $5.37 | $92.36 |
| Gulf CoastLowest | $4.57 | $78.60 |
| Rocky Mountain | $5.12 | $88.06 |
| West Coast | $6.08 | $104.58 |
| CaliforniaHighest | $6.36 | $109.39 |
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
- 17.2-gallon tank$90.82
- A year of driving (15,000 mi)$3,168
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
X4 tank size in other years
The 2020 X4 uses the same 17.2 gal tank as the 2019 model.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2025 X4 | 17.2 gal | 464 mi |
| 2024 X4 | 17.2 gal | 482 mi |
| 2023 X4 | 17.2 gal | 482 mi |
| 2022 X4 | 17.2 gal | 482 mi |
| 2021 X4 | 17.2 gal | 499 mi |
| 2020 X4 | 17.2 gal | 482 mi |
| 2019 X4 | 17.2 gal | 499 mi |
| 2018 X4 | 17.7 gal | 496 mi |
| 2017 X4 | 17.7 gal | 478 mi |
| 2016 X4 | 17.7 gal | 496 mi |
| 2015 X4 | 17.7 gal | 496 mi |
2020 BMW X4 vs similar 2020 SUVs
The X4 has the smallest tank of the seven 2020 SUVs compared here: 17.2 gallons, against 21.7 for the Land Rover Range Rover Velar.
| 2020 model | Tank | Longest highway range |
|---|---|---|
| Land Rover Range Rover Velar | 16.6–21.7 gal | 448 mi |
| Porsche Macan | 19.8 gal | 455 mi |
| Lexus RX 350 | 19.2 gal | 518 mi |
| Volvo XC60 | 18.5–18.8 gal | 545 mi |
| Lincoln Nautilus | 18.0 gal | 468 mi |
| Mercedes-Benz GLC-Class | 17.4 gal | 505 mi |
| BMW X4 | 17.2 gal | 482 mi |
Other 2020 SUVs of a similar size, one model per brand.
2020 BMW X4 fuel system recalls
None of the 10 recalls NHTSA lists for the 2020 BMW X4 involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2020 BMW X4?
The 2020 BMW X4 holds 17.2 gallons (65 liters) on every trim we list.
How many gallons and liters does the 2020 BMW X4 gas tank hold?
The 2020 BMW X4 tank holds 65 liters, or 17.2 gallons in US gallons.
How far can a 2020 BMW X4 go on a full tank?
About 464–482 miles on the highway and 361–396 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 2020 BMW X4 go on a quarter tank?
About 120 highway miles or 99 in town from the 17.2-gallon tank, which has roughly 4.3 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2020 BMW X4 take?
Premium unleaded (recommended). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2020 BMW X4?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 17.2-gallon tank from empty costs $90.82. It ranges from $78.60 in the Gulf Coast to $109.39 in California.
How much does a full tank of gas weigh in a 2020 BMW X4?
About 107 pounds for the 17.2-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2020 BMW X4 have a bigger gas tank than the Lincoln Nautilus?
No. The 2020 Lincoln Nautilus holds up to 18.0 gallons; the 2020 BMW X4 holds up to 17.2.
Has the 2020 BMW X4 had a fuel pump or fuel system recall?
No. None of the 10 recalls NHTSA lists for the 2020 BMW X4 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 (BMW 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.