2008 Audi R8 Gas Tank Size & Fuel Capacity
Fuel tank capacity
23.8gal · 90 L
The 2008 Audi R8 has a fuel tank capacity of 23.8 gallons (90 liters) on every trim.
A full tank is good for roughly 452–476 highway miles or 309 miles around town, going by the EPA ratings.
23.8 gal · Bigger than 76% of 2008 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Pump & gauge parts
- FAQ
2008 Audi R8 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 | |
|---|---|---|---|---|---|---|
| quattro 2dr Coupe AWD 4.2L 8cyl 6AM · AWD MPG 13 / 19Range 309 / 452 mi | 4.2L 8cyl 6AM | AWD | 23.8 gal90 L | 13 / 19 | 309 / 452 mi | |
| quattro 2dr Coupe AWD 4.2L 8cyl 6M · AWD MPG 13 / 20Range 309 / 476 mi | 4.2L 8cyl 6M | AWD | 23.8 gal90 L | 13 / 20 | 309 / 476 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 2008 Audi R8 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 15 MPG, a full 23.8-gallon tank covers about 357 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 23.8 | 452 | 309 |
| 3/4 | 17.9 | 339 | 232 |
| 1/2 | 11.9 | 226 | 155 |
| 1/4 | 6.0 | 113 | 77 |
| 1/8 | 3.0 | 57 | 39 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,000 gallons, roughly 42 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
- 15 MPG
- Tailpipe CO2
- 592 g/mi
- Gas guzzler tax
- Yes
- Source
- EPA ratings
What it costs to fill up a 2008 Audi R8
$125.66 to fill the 23.8-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 |
|---|---|---|---|---|
| 23.8 gal | Premium | $5.28 | $125.66 | $94.25 |
By region, 23.8-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $117.33 |
| Midwest | $5.37 | $127.81 |
| Gulf CoastLowest | $4.57 | $108.77 |
| Rocky Mountain | $5.12 | $121.86 |
| West Coast | $6.08 | $144.70 |
| CaliforniaHighest | $6.36 | $151.37 |
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
- 23.8-gallon tank$125.66
- A year of driving (15,000 mi)$5,280
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
R8 tank size in other years
2008 is the first R8 model year we list.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2014 R8 | 19.8–23.8 gal | 547 mi |
| 2012 R8 | 19.8–23.8 gal | 500 mi |
| 2011 R8 | 23.8 gal | 500 mi |
| 2010 R8 | 23.8 gal | 476 mi |
| 2009 R8 | 23.8 gal | 452 mi |
| 2008 R8 | 23.8 gal | 476 mi |
2008 Audi R8 fuel pump and gauge parts
These are the part numbers the makers list for the 2008 Audi R8. Check the fuel system recalls first: recall repairs are free.
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Frequently asked questions
What is the fuel tank capacity of the 2008 Audi R8?
The 2008 Audi R8 holds 23.8 gallons (90 liters) on every trim we list.
How many gallons and liters does the 2008 Audi R8 gas tank hold?
The 2008 Audi R8 tank holds 90 liters, or 23.8 gallons in US gallons.
How far can a 2008 Audi R8 go on a full tank?
About 452–476 miles on the highway and 309 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 2008 Audi R8 go on a quarter tank?
About 113 highway miles or 77 in town from the 23.8-gallon tank, which has roughly 6.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2008 Audi R8 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2008 Audi R8?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 23.8-gallon tank from empty costs $125.66. It ranges from $108.77 in the Gulf Coast to $151.37 in California.
How much does a full tank of gas weigh in a 2008 Audi R8?
About 148 pounds for the 23.8-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
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.