The 2013 Audi A8 has a fuel tank capacity of 23.4 to 23.8 gallons (89–90 liters), depending on the trim. The most common size is 23.8 gallons, used on 4 trims.
A full tank is good for roughly 491–666 highway miles or 304–428 miles around town, going by the EPA ratings.
020 gal40 gal
23.8 gal · Bigger than 79% of 2013 models we list.
What changes the tank sizeTap an option to filter the table
Engine
All 5 trims
MPG and range are city / highway.
Trim
Engine
Drive
Tank
MPG city / hwy
Range city / hwy
L W12 6.3 quattro 4dr Sedan AWD6.3L 12cyl 8A · AWDMPG 13 / 21Range 304 / 491 mi
6.3L 12cyl 8A
AWD
23.4 gal89 L
13 / 21
304 / 491 mi
3.0T quattro 4dr Sedan AWD3.0L 6cyl S/C 8A · AWDMPG 18 / 28Range 428 / 666 mi
3.0L 6cyl S/C 8A
AWD
23.8 gal90 L
18 / 28
428 / 666 mi
4.0T quattro 4dr Sedan AWD4.0L 8cyl Turbo 8A · AWDMPG 17 / 28Range 405 / 666 mi
4.0L 8cyl Turbo 8A
AWD
23.8 gal90 L
17 / 28
405 / 666 mi
L 3.0T quattro 4dr Sedan AWD3.0L 6cyl S/C 8A · AWDMPG 18 / 28Range 428 / 666 mi
3.0L 6cyl S/C 8A
AWD
23.8 gal90 L
18 / 28
428 / 666 mi
L 4.0T quattro 4dr Sedan AWD4.0L 8cyl Turbo 8A · AWDMPG 16 / 26Range 381 / 619 mi
4.0L 8cyl Turbo 8A
AWD
23.8 gal90 L
16 / 26
381 / 619 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 2013 Audi A8 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 21 MPG, a full 23.8-gallon tank covers about 500 miles.
Gauge
Gallons
Highway miles
City miles
Full
23.8
666
428
3/4
17.9
500
321
1/2
11.9
333
214
1/4
6.0
167
107
1/8
3.0
83
54
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 714 gallons, roughly 30 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.
Other 2013 sedans of a similar size, one model per brand.
2013 Audi A8 fuel system recalls
NHTSA lists 2 fuel-system recalls for the 2013 Audi A8, out of 6 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
Delivery · Hoses, lines/piping, and fittingsJan 28, 2019 · NHTSA 19V057000 · Volkswagen Group Of America, Inc. · 8,985 vehicles
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2016 Audi A8 and S8 vehicles. The fuel supply line for the high pressure fuel pump may become porous and leak fuel.
Risk and remedy
Risk: Leaking fuel, in the presence of an ignition source, increases the risk of fire.
Remedy: Audi has notified owners, and dealers will install a fuel pressure damper, free of charge. The recall began February 21, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20BM.
Delivery · Hoses, lines/piping, and fittingsJun 25, 2018 · NHTSA 18V430000 · Volkswagen Group Of America, Inc. · 6,633 vehicles
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2015 Audi S8 and A8 vehicles. The fuel supply line for the high pressure fuel pump may become porous over time, resulting in a fuel leak.
Risk and remedy
Risk: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy: Audi will notify owners, and dealers will replace the fuel line, free of charge. The recall began July 20, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20AV.
What is the fuel tank capacity of the 2013 Audi A8?
The 2013 Audi A8 holds between 23.4 and 23.8 gallons, depending on the trim. 23.8 gallons is the usual size; the smaller 23.4-gallon tank is on the L W12 6.3 quattro 4dr Sedan AWD.
How many gallons and liters does the 2013 Audi A8 gas tank hold?
The 2013 Audi A8 tank holds 89–90 liters, or 23.4–23.8 gallons in US gallons.
Which 2013 Audi A8 has the biggest gas tank?
The 23.8-gallon tank is on the 3.0T quattro 4dr Sedan AWD, 4.0T quattro 4dr Sedan AWD, L 3.0T quattro 4dr Sedan AWD and 1 other trim. The smallest tank, 23.4 gallons, is on the L W12 6.3 quattro 4dr Sedan AWD.
How far can a 2013 Audi A8 go on a full tank?
About 491–666 miles on the highway and 304–428 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 2013 Audi A8 go on a quarter tank?
About 167 highway miles or 107 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 2013 Audi A8 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2013 Audi A8?
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 2013 Audi A8?
About 148 pounds for the 23.8-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2013 Audi A8 have a bigger gas tank than the Lexus LS 460?
Yes. The 2013 Audi A8 holds up to 23.8 gallons; the 2013 Lexus LS 460 holds up to 22.2.
Has the 2013 Audi A8 had a fuel pump or fuel system recall?
Yes. NHTSA lists 2 fuel-system recalls for the 2013 Audi A8: 19V057000 (delivery · hoses, lines/piping, and fittings); 18V430000 (delivery · hoses, lines/piping, and fittings). 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).