2023 BMW Z4 Gas Tank Size & Fuel Capacity
Fuel tank capacity
13.7gal · 52 L
The 2023 BMW Z4 has a fuel tank capacity of 13.7 gallons (52 liters) on every trim.
A full tank is good for roughly 425–452 highway miles or 315–343 miles around town, going by the EPA ratings.
13.7 gal · Smaller than 85% of 2023 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2023 BMW Z4 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 2dr Convertible 3.0L 6cyl Turbo 8A · RWD MPG 23 / 31Range 315 / 425 mi | 3.0L 6cyl Turbo 8A | RWD | 13.7 gal52 L | 23 / 31 | 315 / 425 mi | |
| sDrive30i 2dr Convertible 2.0L 4cyl Turbo 8A · RWD MPG 25 / 33Range 343 / 452 mi | 2.0L 4cyl Turbo 8A | RWD | 13.7 gal52 L | 25 / 33 | 343 / 452 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 2023 BMW Z4 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 28 MPG, a full 13.7-gallon tank covers about 384 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 13.7 | 452 | 343 |
| 3/4 | 10.3 | 339 | 257 |
| 1/2 | 6.9 | 226 | 171 |
| 1/4 | 3.4 | 113 | 86 |
| 1/8 | 1.7 | 57 | 43 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 536 gallons, roughly 39 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
- 26–28 MPG
- Tailpipe CO2
- 312–338 g/mi
- EPA greenhouse score
- 5–6 of 10
- Source
- EPA ratings
What it costs to fill up a 2023 BMW Z4
$72.34 to fill the 13.7-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 |
|---|---|---|---|---|
| 13.7 gal | Premium | $5.28 | $72.34 | $54.25 |
By region, 13.7-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $67.54 |
| Midwest | $5.37 | $73.57 |
| Gulf CoastLowest | $4.57 | $62.61 |
| Rocky Mountain | $5.12 | $70.14 |
| West Coast | $6.08 | $83.30 |
| CaliforniaHighest | $6.36 | $87.13 |
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
- 13.7-gallon tank$72.34
- A year of driving (15,000 mi)$2,829
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
Z4 tank size in other years
The 2023 Z4 uses the same 13.7 gal tank as every Z4 since 2019.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2026 Z4 | 13.7 gal | 452 mi |
| 2025 Z4 | 13.7 gal | 452 mi |
| 2024 Z4 | 13.7 gal | 452 mi |
| 2023 Z4 | 13.7 gal | 452 mi |
| 2022 Z4 | 13.7 gal | 438 mi |
| 2021 Z4 | 13.7 gal | 438 mi |
| 2020 Z4 | 13.7 gal | 438 mi |
| 2019 Z4 | 13.7 gal | 438 mi |
| 2016 Z4 | 14.5 gal | 493 mi |
2023 BMW Z4 vs similar 2023 convertibles
The Z4 has the smallest tank of the four 2023 convertibles compared here: 13.7 gallons, against 18.5 for the Jaguar F-TYPE.
| 2023 model | Tank | Longest highway range |
|---|---|---|
| Jaguar F-TYPE | 18.5 gal | 444 mi |
| Porsche 718 Boxster | 14.2–16.9 gal | 406 mi |
| Audi TT | 14.5 gal | 435 mi |
| BMW Z4 | 13.7 gal | 452 mi |
Other 2023 convertibles of a similar size, one model per brand.
2023 BMW Z4 fuel system recalls
None of the 2 recalls NHTSA lists for the 2023 BMW Z4 involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2023 BMW Z4?
The 2023 BMW Z4 holds 13.7 gallons (52 liters) on every trim we list.
How many gallons and liters does the 2023 BMW Z4 gas tank hold?
The 2023 BMW Z4 tank holds 52 liters, or 13.7 gallons in US gallons.
How far can a 2023 BMW Z4 go on a full tank?
About 425–452 miles on the highway and 315–343 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 2023 BMW Z4 go on a quarter tank?
About 113 highway miles or 86 in town from the 13.7-gallon tank, which has roughly 3.4 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2023 BMW Z4 take?
Premium unleaded (recommended). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2023 BMW Z4?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 13.7-gallon tank from empty costs $72.34. It ranges from $62.61 in the Gulf Coast to $87.13 in California.
How much does a full tank of gas weigh in a 2023 BMW Z4?
About 85 pounds for the 13.7-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2023 BMW Z4 have a bigger gas tank than the Audi TT?
No. The 2023 Audi TT holds up to 14.5 gallons; the 2023 BMW Z4 holds up to 13.7.
Has the 2023 BMW Z4 had a fuel pump or fuel system recall?
No. None of the 2 recalls NHTSA lists for the 2023 BMW Z4 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.