2018 BMW M4 Gas Tank Size & Fuel Capacity
Fuel tank capacity
15.8gal · 60 L
The 2018 BMW M4 has a fuel tank capacity of 15.8 gallons (60 liters) on every trim.
A full tank is good for roughly 395 highway miles or 269 miles around town, going by the EPA ratings.
15.8 gal · Smaller than 71% of 2018 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2018 BMW M4 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 2dr Convertible 3.0L 6cyl Turbo 6M · RWD MPG 17 / 25Range 269 / 395 mi | 3.0L 6cyl Turbo 6M | RWD | 15.8 gal60 L | 17 / 25 | 269 / 395 mi | |
| 2dr Coupe 3.0L 6cyl Turbo 6M · RWD MPG 17 / 25Range 269 / 395 mi | 3.0L 6cyl Turbo 6M | RWD | 15.8 gal60 L | 17 / 25 | 269 / 395 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 2018 BMW M4 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 20 MPG, a full 15.8-gallon tank covers about 316 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.8 | 395 | 269 |
| 3/4 | 11.9 | 296 | 201 |
| 1/2 | 7.9 | 198 | 134 |
| 1/4 | 4.0 | 99 | 67 |
| 1/8 | 2.0 | 49 | 34 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 750 gallons, roughly 47 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
- 20 MPG
- Tailpipe CO2
- 439–450 g/mi
- EPA greenhouse score
- 4 of 10
- Source
- EPA ratings
What it costs to fill up a 2018 BMW M4
$83.42 to fill the 15.8-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 |
|---|---|---|---|---|
| 15.8 gal | Premium | $5.28 | $83.42 | $62.57 |
By region, 15.8-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $77.89 |
| Midwest | $5.37 | $84.85 |
| Gulf CoastLowest | $4.57 | $72.21 |
| Rocky Mountain | $5.12 | $80.90 |
| West Coast | $6.08 | $96.06 |
| CaliforniaHighest | $6.36 | $100.49 |
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
- 15.8-gallon tank$83.42
- A year of driving (15,000 mi)$3,960
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
M4 tank size in other years
The 2018 M4 uses the same 15.8 gal tank as every M4 since 2015.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2023 M4 | 15.6 gal | 359 mi |
| 2022 M4 | 15.6 gal | 359 mi |
| 2021 M4 | 15.6 gal | 359 mi |
| 2020 M4 | 15.8 gal | 395 mi |
| 2019 M4 | 15.8 gal | 395 mi |
| 2018 M4 | 15.8 gal | 395 mi |
| 2017 M4 | 15.8 gal | 411 mi |
| 2016 M4 | 15.8 gal | 411 mi |
| 2015 M4 | 15.8 gal | 411 mi |
2018 BMW M4 vs similar 2018 coupes
At 15.8 gallons, the M4's largest tank ranks third of the four 2018 coupes compared here. The Mercedes-Benz SL-Class carries the most (19.8 gal) and the Audi S5 the least (15.3 gal).
| 2018 model | Tank | Longest highway range |
|---|---|---|
| Mercedes-Benz SL-Class | 19.8 gal | 554 mi |
| Jaguar F-TYPE | 18.5 gal | 555 mi |
| BMW M4 | 15.8 gal | 395 mi |
| Audi S5 | 15.3 gal | 459 mi |
Other 2018 coupes of a similar size, one model per brand.
2018 BMW M4 fuel system recalls
None of the 1 recall NHTSA lists for the 2018 BMW M4 involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2018 BMW M4?
The 2018 BMW M4 holds 15.8 gallons (60 liters) on every trim we list.
How many gallons and liters does the 2018 BMW M4 gas tank hold?
The 2018 BMW M4 tank holds 60 liters, or 15.8 gallons in US gallons.
How far can a 2018 BMW M4 go on a full tank?
About 395 miles on the highway and 269 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 2018 BMW M4 go on a quarter tank?
About 99 highway miles or 67 in town from the 15.8-gallon tank, which has roughly 4.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2018 BMW M4 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2018 BMW M4?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 15.8-gallon tank from empty costs $83.42. It ranges from $72.21 in the Gulf Coast to $100.49 in California.
How much does a full tank of gas weigh in a 2018 BMW M4?
About 98 pounds for the 15.8-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2018 BMW M4 have a bigger gas tank than the Mercedes-Benz SL-Class?
No. The 2018 Mercedes-Benz SL-Class holds up to 19.8 gallons; the 2018 BMW M4 holds up to 15.8.
Has the 2018 BMW M4 had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 2018 BMW M4 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.