2022 BMW M5 CS Gas Tank Size & Fuel Capacity
Fuel tank capacity
20.1gal · 76 L
The 2022 BMW M5 CS has a fuel tank capacity of 20.1 gallons (76 liters).
A full tank is good for roughly 422 highway miles or 302 miles around town, going by the EPA ratings.
20.1 gal · Bigger than 67% of 2022 models we list.
Listed separately: 2022 BMW M5 (20.1 gal).
2022 BMW M5 CS fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr Sedan AWD 4.4L 8cyl Turbo 8A · AWD MPG 15 / 21Range 302 / 422 mi | 4.4L 8cyl Turbo 8A | AWD | 20.1 gal76 L | 15 / 21 | 302 / 422 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 2022 BMW M5 CS 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 17 MPG, a full 20.1-gallon tank covers about 342 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 20.1 | 422 | 302 |
| 3/4 | 15.1 | 317 | 226 |
| 1/2 | 10.1 | 211 | 151 |
| 1/4 | 5.0 | 106 | 75 |
| 1/8 | 2.5 | 53 | 38 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 882 gallons, roughly 44 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
- 17 MPG
- Tailpipe CO2
- 522 g/mi
- EPA greenhouse score
- 3 of 10
- Gas guzzler tax
- Yes
- Source
- EPA ratings
What it costs to fill up a 2022 BMW M5 CS
$106.13 to fill the 20.1-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 |
|---|---|---|---|---|
| 20.1 gal | Premium | $5.28 | $106.13 | $79.60 |
By region, 20.1-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $99.09 |
| Midwest | $5.37 | $107.94 |
| Gulf CoastLowest | $4.57 | $91.86 |
| Rocky Mountain | $5.12 | $102.91 |
| West Coast | $6.08 | $122.21 |
| CaliforniaHighest | $6.36 | $127.84 |
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
- 20.1-gallon tank$106.13
- A year of driving (15,000 mi)$4,659
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
M5 CS tank size in other years
2022 is the first M5 CS model year we list.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2022 M5 CS | 20.1 gal | 422 mi |
2022 BMW M5 CS vs similar 2022 sedans
At 20.1 gallons, the M5 CS's largest tank ranks second of the seven 2022 sedans compared here. The Mercedes-Benz CLS-Class carries the most (21.1 gal) and the Lexus ES 250 the least (15.9 gal).
| 2022 model | Tank | Longest highway range |
|---|---|---|
| Mercedes-Benz CLS-Class | 21.1 gal | 633 mi |
| BMW M5 CS | 20.1 gal | 422 mi |
| INFINITI Q50 | 20.0 gal | 580 mi |
| Jaguar XF | 19.5 gal | 644 mi |
| Audi A6 | 19.3 gal | 618 mi |
| Cadillac CT5-V Blackwing | 17.0 gal | 374 mi |
| Lexus ES 250 | 15.9 gal | 541 mi |
Other 2022 sedans of a similar size, one model per brand.
Frequently asked questions
What is the fuel tank capacity of the 2022 BMW M5 CS?
The 2022 BMW M5 CS holds 20.1 gallons (76 liters).
How many gallons and liters does the 2022 BMW M5 CS gas tank hold?
The 2022 BMW M5 CS tank holds 76 liters, or 20.1 gallons in US gallons.
How far can a 2022 BMW M5 CS go on a full tank?
About 422 miles on the highway and 302 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 2022 BMW M5 CS go on a quarter tank?
About 106 highway miles or 75 in town from the 20.1-gallon tank, which has roughly 5.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2022 BMW M5 CS take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2022 BMW M5 CS?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 20.1-gallon tank from empty costs $106.13. It ranges from $91.86 in the Gulf Coast to $127.84 in California.
How much does a full tank of gas weigh in a 2022 BMW M5 CS?
About 125 pounds for the 20.1-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2022 BMW M5 CS have a bigger gas tank than the Cadillac CT5-V Blackwing?
Yes. The 2022 BMW M5 CS holds up to 20.1 gallons; the 2022 Cadillac CT5-V Blackwing holds up to 17.0.
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).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.