2021 BMW M3 Gas Tank Size & Fuel Capacity
Fuel tank capacity
15.6gal · 59 L
The 2021 BMW M3 has a fuel tank capacity of 15.6 gallons (59 liters) on every trim.
A full tank is good for roughly 359 highway miles or 250 miles around town, going by the EPA ratings.
15.6 gal · Smaller than 73% of 2021 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
2021 BMW M3 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 | |
|---|---|---|---|---|---|---|
| 4dr Sedan 3.0L 6cyl Turbo 6M · RWD MPG 16 / 23Range 250 / 359 mi | 3.0L 6cyl Turbo 6M | RWD | 15.6 gal59 L | 16 / 23 | 250 / 359 mi | |
| Competition 4dr Sedan 3.0L 6cyl Turbo 8A · RWD MPG 16 / 23Range 250 / 359 mi | 3.0L 6cyl Turbo 8A | RWD | 15.6 gal59 L | 16 / 23 | 250 / 359 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 BMW M3 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 19 MPG, a full 15.6-gallon tank covers about 296 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.6 | 359 | 250 |
| 3/4 | 11.7 | 269 | 187 |
| 1/2 | 7.8 | 179 | 125 |
| 1/4 | 3.9 | 90 | 62 |
| 1/8 | 2.0 | 45 | 31 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 789 gallons, roughly 51 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
- 19 MPG
- Tailpipe CO2
- 470–472 g/mi
- EPA greenhouse score
- 3 of 10
- Source
- EPA ratings
What it costs to fill up a 2021 BMW M3
$82.37 to fill the 15.6-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 |
|---|---|---|---|---|
| 15.6 gal | Premium | $5.28 | $82.37 | $61.78 |
By region, 15.6-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $76.91 |
| Midwest | $5.37 | $83.77 |
| Gulf CoastLowest | $4.57 | $71.29 |
| Rocky Mountain | $5.12 | $79.87 |
| West Coast | $6.08 | $94.85 |
| CaliforniaHighest | $6.36 | $99.22 |
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
- 15.6-gallon tank$82.37
- A year of driving (15,000 mi)$4,168
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
M3 tank size in other years
The tank changed for 2021: 15.6 gal, down from 15.8 gal on the 2018 M3.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2026 M3 | 15.6 gal | 359 mi |
| 2025 M3 | 15.6 gal | 359 mi |
| 2024 M3 | 15.6 gal | 359 mi |
| 2023 M3 | 15.6 gal | 359 mi |
| 2022 M3 | 15.6 gal | 359 mi |
| 2021 M3 | 15.6 gal | 359 mi |
| 2018 M3 | 15.8 gal | 395 mi |
| 2017 M3 | 15.8 gal | 411 mi |
| 2016 M3 | 15.8 gal | 411 mi |
| 2015 M3 | 15.8 gal | 411 mi |
| 2013 M3 | 16.6 gal | 332 mi |
- 2027
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2018
- 2017
- 2016
- 2015
- 2013
- 2012
- 2011
- 2010
- 2009
- 2008
- 2006
- 2005
- 2004
- 2003
- 2002
- 2001
- 1998
- 1997
- 1996
- 1995
- 1991
- 1990
2021 BMW M3 vs similar 2021 sedans
At 15.6 gallons, the M3's largest tank ranks fifth of the six 2021 sedans compared here. The Lexus IS 350 carries the most (17.4 gal) and the Audi S4 the least (15.3 gal).
| 2021 model | Tank | Longest highway range |
|---|---|---|
| Lexus IS 350 | 17.4 gal | 487 mi |
| Volvo S60 | 15.9 gal | 541 mi |
| Acura TLX | 15.9 gal | 493 mi |
| Genesis G70 | 15.8 gal | 474 mi |
| BMW M3 | 15.6 gal | 359 mi |
| Audi S4 | 15.3 gal | 428 mi |
Other 2021 sedans of a similar size, one model per brand.
2021 BMW M3 fuel system recalls
None of the 7 recalls NHTSA lists for the 2021 BMW M3 involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2021 BMW M3?
The 2021 BMW M3 holds 15.6 gallons (59 liters) on every trim we list.
How many gallons and liters does the 2021 BMW M3 gas tank hold?
The 2021 BMW M3 tank holds 59 liters, or 15.6 gallons in US gallons.
How far can a 2021 BMW M3 go on a full tank?
About 359 miles on the highway and 250 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 BMW M3 go on a quarter tank?
About 90 highway miles or 62 in town from the 15.6-gallon tank, which has roughly 3.9 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 BMW M3 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2021 BMW M3?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 15.6-gallon tank from empty costs $82.37. It ranges from $71.29 in the Gulf Coast to $99.22 in California.
How much does a full tank of gas weigh in a 2021 BMW M3?
About 97 pounds for the 15.6-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 BMW M3 have a bigger gas tank than the Volvo S60?
No. The 2021 Volvo S60 holds up to 15.9 gallons; the 2021 BMW M3 holds up to 15.6.
Has the 2021 BMW M3 had a fuel pump or fuel system recall?
No. None of the 7 recalls NHTSA lists for the 2021 BMW M3 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.