The 2021 Lincoln Aviator has a fuel tank capacity of 18.0 to 20.2 gallons (68–76 liters), depending on the trim. The most common size is 20.2 gallons, used on 5 trims.
A full tank is good for roughly 450–525 highway miles or 343–396 miles around town, going by the EPA ratings.
020 gal40 gal
20.2 gal · Bigger than 67% of 2021 models we list.
Reserve 4dr SUV AWD3.0L 6cyl Turbo 10A · AWDMPG 17 / 24Range 343 / 485 mi
3.0L 6cyl Turbo 10A
AWD
20.2 gal76 L
17 / 24
343 / 485 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 Lincoln Aviator 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 20.2-gallon tank covers about 404 miles.
Gauge
Gallons
Highway miles
City miles
Full
20.2
485
343
3/4
15.2
364
258
1/2
10.1
242
172
1/4
5.1
121
86
1/8
2.5
61
43
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 750 gallons, roughly 37 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 20.2 gallons, the Aviator's largest tank ranks sixth of the seven 2021 SUVs compared here. The Land Rover Defender carries the most (23.8 gal) and the Lexus RX 450hL the least (17.2 gal).
Other 2021 SUVs of a similar size, one model per brand.
2021 Lincoln Aviator fuel system recalls
NHTSA lists 1 fuel-system recall for the 2021 Lincoln Aviator, out of 28 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
Delivery · Fuel pumpJul 7, 2025 · NHTSA 25V455000 · Ford Motor Company · 850,318 vehicles
Ford Motor Company (Ford) is recalling certain 2021-2023 Bronco, Explorer, Lincoln Aviator, F-250 SD, F-350 SD, F-450 SD, F-550 SD, 2021-2022 Lincoln Navigator, Mustang, F-150, and 2022 Expedition vehicles. The low-pressure fuel pump may fail, which can result in an engine stall while driving.
Risk and remedy
Risk: An engine stall increases the risk of a crash.
Remedy: Dealers will replace the low pressure fuel pump on super duty vehicles and update the powertrain control module (PCM) software on all other affected vehicles, free of charge. Owner notification letters were mailed July 27, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S75.
What is the fuel tank capacity of the 2021 Lincoln Aviator?
The 2021 Lincoln Aviator holds between 18.0 and 20.2 gallons, depending on the trim. 20.2 gallons is the usual size; the smaller 18.0-gallon tank is on the Black Label Grand Touring 4dr SUV AWD.
How many gallons and liters does the 2021 Lincoln Aviator gas tank hold?
The 2021 Lincoln Aviator tank holds 68–76 liters, or 18.0–20.2 gallons in US gallons.
Which 2021 Lincoln Aviator has the biggest gas tank?
The 20.2-gallon tank is on the 4dr SUV, 4dr SUV AWD, Black Label 4dr SUV AWD and 2 other trims. The smallest tank, 18.0 gallons, is on the Black Label Grand Touring 4dr SUV AWD.
Does the 2021 Lincoln Aviator tank change with the powertrain?
Yes. Plug-in hybrid: 18.0 gal; Gas: 20.2 gal.
Does AWD change the 2021 Lincoln Aviator gas tank?
Yes. AWD: 18.0–20.2 gal; RWD: 20.2 gal.
How far can a 2021 Lincoln Aviator go on a full tank?
About 450–525 miles on the highway and 343–396 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 Lincoln Aviator go on a quarter tank?
About 121 highway miles or 86 in town from the 20.2-gallon tank, which has roughly 5.1 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 Lincoln Aviator take?
Premium unleaded (recommended). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2021 Lincoln Aviator?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 20.2-gallon tank from empty costs $106.66. It ranges from $92.31 in the Gulf Coast to $128.47 in California.
How much does a full tank of gas weigh in a 2021 Lincoln Aviator?
About 125 pounds for the 20.2-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 Lincoln Aviator have a bigger gas tank than the Land Rover Defender?
No. The 2021 Land Rover Defender holds up to 23.8 gallons; the 2021 Lincoln Aviator holds up to 20.2.
Has the 2021 Lincoln Aviator had a fuel pump or fuel system recall?
Yes. NHTSA lists 1 fuel-system recall for the 2021 Lincoln Aviator: 25V455000 (delivery · fuel pump). 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).