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 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.
At 15.8 gallons, the M4's largest tank ranks fourth of the five 2020 coupes compared here. The Mercedes-Benz SL-Class carries the most (19.8 gal) and the Audi S5 the least (15.3 gal).
Other 2020 coupes of a similar size, one model per brand.
2020 BMW M4 fuel system recalls
NHTSA lists 1 fuel-system recall for the 2020 BMW M4, out of 2 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
Fuel injection systemOct 29, 2020 · NHTSA 20V666000 · Bmw Of North America, LLC · 21 vehicles
BMW of North America, LLC (BMW) is recalling certain 2020-2021 M2 Coupe and 2020 M4 Coupe vehicles. Fuel injectors may have been installed without a damping component which is used to reduce vibration. If a damping component is not present, vibration will increase at the connection between the fuel line and the fuel rail, which over time, can result in damage at the connection.
Risk and remedy
Risk: A damaged connection between the fuel line and the fuel rail could lead to a fuel leak and, in the presence of an ignition source, increase the risk of a fire.
Remedy: BMW will notify owners, and dealers will inspect the fuel injectors and if a damping component is missing, the injectors and the fuel rail will be replaced, free of charge. The recall began December 18, 2020. Owners may contact BMW customer service at 1-800-525-7417.
What is the fuel tank capacity of the 2020 BMW M4?
The 2020 BMW M4 holds 15.8 gallons (60 liters) on every trim we list.
How many gallons and liters does the 2020 BMW M4 gas tank hold?
The 2020 BMW M4 tank holds 60 liters, or 15.8 gallons in US gallons.
How far can a 2020 BMW M4 go on a full tank?
About 395 miles on the highway and 269–284 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 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 2020 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 2020 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 2020 BMW M4?
About 98 pounds for the 15.8-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2020 BMW M4 have a bigger gas tank than the Mercedes-Benz SL-Class?
No. The 2020 Mercedes-Benz SL-Class holds up to 19.8 gallons; the 2020 BMW M4 holds up to 15.8.
Has the 2020 BMW M4 had a fuel pump or fuel system recall?
Yes. NHTSA lists 1 fuel-system recall for the 2020 BMW M4: 20V666000 (fuel injection system). Check your VIN at nhtsa.gov/recalls to see if your car is affected.
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).