2021 Audi RS 5 Gas Tank Size & Fuel Capacity
Fuel tank capacity
15.3gal · 58 L
The 2021 Audi RS 5 has a fuel tank capacity of 15.3 gallons (58 liters) on every trim.
A full tank is good for roughly 383 highway miles or 275 miles around town, going by the EPA ratings.
15.3 gal · Smaller than 75% 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 Audi RS 5 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 2dr Coupe AWD 2.9L 6cyl Turbo 8A · AWD MPG 18 / 25Range 275 / 383 mi | 2.9L 6cyl Turbo 8A | AWD | 15.3 gal58 L | 18 / 25 | 275 / 383 mi | |
| 4dr Hatchback AWD 2.9L 6cyl Turbo 8A · AWD MPG 18 / 25Range 275 / 383 mi | 2.9L 6cyl Turbo 8A | AWD | 15.3 gal58 L | 18 / 25 | 275 / 383 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 Audi RS 5 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 15.3-gallon tank covers about 306 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.3 | 383 | 275 |
| 3/4 | 11.5 | 287 | 207 |
| 1/2 | 7.7 | 191 | 138 |
| 1/4 | 3.8 | 96 | 69 |
| 1/8 | 1.9 | 48 | 34 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 750 gallons, roughly 49 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
- 20–21 MPG
- Tailpipe CO2
- 428–432 g/mi
- EPA greenhouse score
- 4 of 10
- Source
- EPA ratings
What it costs to fill up a 2021 Audi RS 5
$80.78 to fill the 15.3-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 |
|---|---|---|---|---|
| 15.3 gal | Premium | $5.28 | $80.78 | $60.59 |
By region, 15.3-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $75.43 |
| Midwest | $5.37 | $82.16 |
| Gulf CoastLowest | $4.57 | $69.92 |
| Rocky Mountain | $5.12 | $78.34 |
| West Coast | $6.08 | $93.02 |
| CaliforniaHighest | $6.36 | $97.31 |
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
- 15.3-gallon tank$80.78
- 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.
RS 5 tank size in other years
The 2021 RS 5 uses the same 15.3 gal tank as every RS 5 since 2021.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2025 RS 5 | 15.3 gal | 383 mi |
| 2024 RS 5 | 15.3 gal | 383 mi |
| 2023 RS 5 | 15.3 gal | 398 mi |
| 2022 RS 5 | 15.3 gal | 383 mi |
| 2021 RS 5 | 15.3 gal | 383 mi |
| 2019 RS 5 | 15.3 gal | 413 mi |
| 2018 RS 5 | 15.3 gal | 398 mi |
| 2015 RS 5 | 16.1 gal | 370 mi |
| 2014 RS 5 | 16.1 gal | 370 mi |
| 2013 RS 5 | 16.1 gal | 370 mi |
2021 Audi RS 5 vs similar 2021 coupes
The RS 5 has the smallest tank of the four 2021 coupes compared here: 15.3 gallons, against 20.0 for the INFINITI Q60.
| 2021 model | Tank | Longest highway range |
|---|---|---|
| INFINITI Q60 | 20.0 gal | 560 mi |
| Lexus RC F | 17.4 gal | 418 mi |
| BMW 4 Series | 15.6 gal | 530 mi |
| Audi RS 5 | 15.3 gal | 383 mi |
Other 2021 coupes of a similar size, one model per brand.
2021 Audi RS 5 fuel system recalls
None of the 5 recalls NHTSA lists for the 2021 Audi RS 5 involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 2021 Audi RS 5?
The 2021 Audi RS 5 holds 15.3 gallons (58 liters) on every trim we list.
How many gallons and liters does the 2021 Audi RS 5 gas tank hold?
The 2021 Audi RS 5 tank holds 58 liters, or 15.3 gallons in US gallons.
How far can a 2021 Audi RS 5 go on a full tank?
About 383 miles on the highway and 275 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 Audi RS 5 go on a quarter tank?
About 96 highway miles or 69 in town from the 15.3-gallon tank, which has roughly 3.8 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 Audi RS 5 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 Audi RS 5?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 15.3-gallon tank from empty costs $80.78. It ranges from $69.92 in the Gulf Coast to $97.31 in California.
How much does a full tank of gas weigh in a 2021 Audi RS 5?
About 95 pounds for the 15.3-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 Audi RS 5 have a bigger gas tank than the BMW 4 Series?
No. The 2021 BMW 4 Series holds up to 15.6 gallons; the 2021 Audi RS 5 holds up to 15.3.
Has the 2021 Audi RS 5 had a fuel pump or fuel system recall?
No. None of the 5 recalls NHTSA lists for the 2021 Audi RS 5 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 (Audi 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.