2021 Nissan Maxima Gas Tank Size & Fuel Capacity
Fuel tank capacity
18.0gal · 68 L
The 2021 Nissan Maxima has a fuel tank capacity of 18.0 gallons (68 liters) on every trim.
A full tank is good for roughly 540 highway miles or 360 miles around town, going by the EPA ratings.
18.0 gal · Bigger than 50% of 2021 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Pump & gauge parts
- FAQ
2021 Nissan Maxima fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 3.5 Platinum 4dr Sedan 3.5L 6cyl CVT · FWD MPG 20 / 30Range 360 / 540 mi | 3.5L 6cyl CVT | FWD | 18.0 gal68 L | 20 / 30 | 360 / 540 mi | |
| 3.5 SR 4dr Sedan 3.5L 6cyl CVT · FWD MPG 20 / 30Range 360 / 540 mi | 3.5L 6cyl CVT | FWD | 18.0 gal68 L | 20 / 30 | 360 / 540 mi | |
| 3.5 SV 4dr Sedan 3.5L 6cyl CVT · FWD MPG 20 / 30Range 360 / 540 mi | 3.5L 6cyl CVT | FWD | 18.0 gal68 L | 20 / 30 | 360 / 540 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 Nissan Maxima 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 24 MPG, a full 18.0-gallon tank covers about 432 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.0 | 540 | 360 |
| 3/4 | 13.5 | 405 | 270 |
| 1/2 | 9.0 | 270 | 180 |
| 1/4 | 4.5 | 135 | 90 |
| 1/8 | 2.3 | 68 | 45 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 625 gallons, roughly 35 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
- 24 MPG
- Tailpipe CO2
- 370 g/mi
- EPA greenhouse score
- 5 of 10
- Source
- EPA ratings
What it costs to fill up a 2021 Nissan Maxima
$95.04 to fill the 18.0-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 |
|---|---|---|---|---|
| 18.0 gal | Premium | $5.28 | $95.04 | $71.28 |
By region, 18.0-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $88.74 |
| Midwest | $5.37 | $96.66 |
| Gulf CoastLowest | $4.57 | $82.26 |
| Rocky Mountain | $5.12 | $92.16 |
| West Coast | $6.08 | $109.44 |
| CaliforniaHighest | $6.36 | $114.48 |
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
- 18.0-gallon tank$95.04
- A year of driving (15,000 mi)$3,300
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
Maxima tank size in other years
The 2021 Maxima uses the same 18.0 gal tank as every Maxima since 2016.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2023 Maxima | 18.0 gal | 540 mi |
| 2022 Maxima | 18.0 gal | 540 mi |
| 2021 Maxima | 18.0 gal | 540 mi |
| 2020 Maxima | 18.0 gal | 540 mi |
| 2019 Maxima | 18.0 gal | 540 mi |
| 2018 Maxima | 18.0 gal | 540 mi |
| 2017 Maxima | 18.0 gal | 540 mi |
| 2016 Maxima | 18.0 gal | 540 mi |
- 2023
- 2022
- 2021
- 2020
- 2019
- 2018
- 2017
- 2016
- 2014
- 2013
- 2012
- 2011
- 2010
- 2009
- 2008
- 2007
- 2006
- 2005
- 2004
- 2003
- 2002
- 2001
- 2000
- 1999
- 1998
- 1997
- 1996
- 1995
- 1994
- 1993
- 1992
- 1991
- 1990
2021 Nissan Maxima vs similar 2021 sedans
At 18.0 gallons, the Maxima's largest tank ranks second of the five 2021 sedans compared here. The Volkswagen Passat carries the most (18.5 gal) and the Toyota Avalon Hybrid the least (13.2 gal).
| 2021 model | Tank | Longest highway range |
|---|---|---|
| Volkswagen Passat | 18.5 gal | 666 mi |
| Nissan Maxima | 18.0 gal | 540 mi |
| Mazda 6 | 16.4 gal | 574 mi |
| Kia Stinger | 15.9 gal | 461 mi |
| Toyota Avalon Hybrid | 13.2 gal | 581 mi |
Other 2021 sedans of a similar size, one model per brand.
2021 Nissan Maxima fuel pump and gauge parts
These are the part numbers the makers list for the 2021 Nissan Maxima. 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 2021 Nissan Maxima?
The 2021 Nissan Maxima holds 18.0 gallons (68 liters) on every trim we list.
How many gallons and liters does the 2021 Nissan Maxima gas tank hold?
The 2021 Nissan Maxima tank holds 68 liters, or 18.0 gallons in US gallons.
How far can a 2021 Nissan Maxima go on a full tank?
About 540 miles on the highway and 360 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 Nissan Maxima go on a quarter tank?
About 135 highway miles or 90 in town from the 18.0-gallon tank, which has roughly 4.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2021 Nissan Maxima 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 Nissan Maxima?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 18.0-gallon tank from empty costs $95.04. It ranges from $82.26 in the Gulf Coast to $114.48 in California.
How much does a full tank of gas weigh in a 2021 Nissan Maxima?
About 112 pounds for the 18.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2021 Nissan Maxima have a bigger gas tank than the Toyota Avalon Hybrid?
Yes. The 2021 Nissan Maxima holds up to 18.0 gallons; the 2021 Toyota Avalon Hybrid holds up to 13.2.
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.