2005 Acura NSX Gas Tank Size & Fuel Capacity
Fuel tank capacity
18.5gal · 70 L
The 2005 Acura NSX has a fuel tank capacity of 18.5 gallons (70 liters) on every trim.
A full tank is good for roughly 407 highway miles or 296 miles around town, going by the EPA ratings.
18.5 gal · Smaller than 58% of 2005 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Pump & gauge parts
- FAQ
2005 Acura NSX 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 | |
|---|---|---|---|---|---|---|
| 2dr Coupe 3.0L 6cyl 4A · RWD MPG 16 / 22Range 296 / 407 mi | 3.0L 6cyl 4A | RWD | 18.5 gal70 L | 16 / 22 | 296 / 407 mi | |
| 2dr Coupe 3.2L 6cyl 6M · RWD MPG 16 / 22Range 296 / 407 mi | 3.2L 6cyl 6M | RWD | 18.5 gal70 L | 16 / 22 | 296 / 407 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 2005 Acura NSX 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 18 MPG, a full 18.5-gallon tank covers about 333 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.5 | 407 | 296 |
| 3/4 | 13.9 | 305 | 222 |
| 1/2 | 9.3 | 204 | 148 |
| 1/4 | 4.6 | 102 | 74 |
| 1/8 | 2.3 | 51 | 37 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 833 gallons, roughly 45 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
- 18 MPG
- Tailpipe CO2
- 494 g/mi
- Source
- EPA ratings
What it costs to fill up a 2005 Acura NSX
$78.99 to fill the 18.5-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 18.5 gal | Regular | $4.27 | $78.99 | $59.25 |
By region, 18.5-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $74.37 |
| Midwest | $4.27 | $78.99 |
| Gulf CoastLowest | $3.70 | $68.45 |
| Rocky Mountain | $4.46 | $82.51 |
| West Coast | $5.42 | $100.27 |
| CaliforniaHighest | $5.89 | $108.96 |
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
- 18.5-gallon tank$78.99
- A year of driving (15,000 mi)$3,558
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
NSX tank size in other years
The 2005 NSX uses the same 18.5 gal tank as every NSX since 1991.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2021 NSX | 15.6 gal | 343 mi |
| 2020 NSX | 15.6 gal | 343 mi |
| 2019 NSX | 15.6 gal | 343 mi |
| 2018 NSX | 15.6 gal | 343 mi |
| 2017 NSX | 15.6 gal | 343 mi |
| 2005 NSX | 18.5 gal | 407 mi |
| 2004 NSX | 18.5 gal | 407 mi |
| 2003 NSX | 18.5 gal | 407 mi |
| 2002 NSX | 18.5 gal | 407 mi |
| 2001 NSX | 18.5 gal | 407 mi |
| 2000 NSX | 18.5 gal | 407 mi |
2005 Acura NSX vs similar 2005 coupes
The NSX has the smallest tank of the two 2005 coupes compared here: 18.5 gallons, against 23.5 for the Porsche 911.
| 2005 model | Tank | Longest highway range |
|---|---|---|
| Porsche 911 | 16.6–23.5 gal | 494 mi |
| Acura NSX | 18.5 gal | 407 mi |
Other 2005 coupes of a similar size, one model per brand.
2005 Acura NSX fuel pump and gauge parts
These are the part numbers the makers list for the 2005 Acura NSX. 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 2005 Acura NSX?
The 2005 Acura NSX holds 18.5 gallons (70 liters) on every trim we list.
How many gallons and liters does the 2005 Acura NSX gas tank hold?
The 2005 Acura NSX tank holds 70 liters, or 18.5 gallons in US gallons.
How far can a 2005 Acura NSX go on a full tank?
About 407 miles on the highway and 296 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 2005 Acura NSX go on a quarter tank?
About 102 highway miles or 74 in town from the 18.5-gallon tank, which has roughly 4.6 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2005 Acura NSX take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2005 Acura NSX?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 18.5-gallon tank from empty costs $78.99. It ranges from $68.45 in the Gulf Coast to $108.96 in California.
How much does a full tank of gas weigh in a 2005 Acura NSX?
About 115 pounds for the 18.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2005 Acura NSX have a bigger gas tank than the Porsche 911?
No. The 2005 Porsche 911 holds up to 23.5 gallons; the 2005 Acura NSX holds up to 18.5.
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.