1991 Subaru XT Gas Tank Size & Fuel Capacity
Fuel tank capacity
15.9gal · 60 L
The 1991 Subaru XT has a fuel tank capacity of 15.9 gallons (60 liters) on every trim.
A full tank is good for roughly 366–461 highway miles or 254–350 miles around town, going by the EPA ratings.
15.9 gal · Smaller than 71% of 1991 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- FAQ
1991 Subaru XT fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
- Engine
- no difference
All 3 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| GL 2dr Coupe 1.8L 4cyl 5M · FWD MPG 22 / 29Range 350 / 461 mi | 1.8L 4cyl 5M | FWD | 15.9 gal60 L | 22 / 29 | 350 / 461 mi | |
| XT6 2dr Coupe 2.7L 6cyl 4A · FWD MPG 18 / 26Range 286 / 413 mi | 2.7L 6cyl 4A | FWD | 15.9 gal60 L | 18 / 26 | 286 / 413 mi | |
| XT6 2dr Coupe AWD 2.7L 6cyl 5M · AWD MPG 16 / 23Range 254 / 366 mi | 2.7L 6cyl 5M | AWD | 15.9 gal60 L | 16 / 23 | 254 / 366 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 1991 Subaru XT 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 25 MPG, a full 15.9-gallon tank covers about 398 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.9 | 461 | 350 |
| 3/4 | 11.9 | 346 | 262 |
| 1/2 | 8.0 | 231 | 175 |
| 1/4 | 4.0 | 115 | 87 |
| 1/8 | 2.0 | 58 | 44 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 600 gallons, roughly 38 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
- 19–25 MPG
- Tailpipe CO2
- 355–468 g/mi
- Source
- EPA ratings
What it costs to fill up a 1991 Subaru XT
$67.89 to fill the 15.9-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 |
|---|---|---|---|---|
| 15.9 gal | Regular | $4.27 | $67.89 | $50.92 |
By region, 15.9-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $63.92 |
| Midwest | $4.27 | $67.89 |
| Gulf CoastLowest | $3.70 | $58.83 |
| Rocky Mountain | $4.46 | $70.91 |
| West Coast | $5.42 | $86.18 |
| CaliforniaHighest | $5.89 | $93.65 |
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
- 15.9-gallon tank$67.89
- A year of driving (15,000 mi)$2,562
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
XT tank size in other years
1991 is the first XT model year we list.
| Model year | Tank | Longest highway range |
|---|---|---|
| 1991 XT | 15.9 gal | 461 mi |
1991 Subaru XT vs similar 1991 coupes
The XT has the largest tank of the four 1991 coupes compared here, 15.9 gallons against 15.9 for the Mazda MX-6.
| 1991 model | Tank | Longest highway range |
|---|---|---|
| Subaru XT | 15.9 gal | 461 mi |
| Mazda MX-6 | 15.9 gal | 461 mi |
| Honda Prelude | 15.9 gal | 398 mi |
| Chevrolet Cavalier | 13.6 gal | 435 mi |
Other 1991 coupes of a similar size, one model per brand.
1991 Subaru XT fuel system recalls
None of the 3 recalls NHTSA lists for the 1991 Subaru XT involve the fuel system.
Frequently asked questions
What is the fuel tank capacity of the 1991 Subaru XT?
The 1991 Subaru XT holds 15.9 gallons (60 liters) on every trim we list.
How many gallons and liters does the 1991 Subaru XT gas tank hold?
The 1991 Subaru XT tank holds 60 liters, or 15.9 gallons in US gallons.
Does AWD change the 1991 Subaru XT gas tank?
No. FWD and AWD versions of the 1991 Subaru XT use the same 15.9 gal tank.
How far can a 1991 Subaru XT go on a full tank?
About 366–461 miles on the highway and 254–350 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 1991 Subaru XT go on a quarter tank?
About 115 highway miles or 87 in town from the 15.9-gallon tank, which has roughly 4.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 1991 Subaru XT take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1991 Subaru XT?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 15.9-gallon tank from empty costs $67.89. It ranges from $58.83 in the Gulf Coast to $93.65 in California.
How much does a full tank of gas weigh in a 1991 Subaru XT?
About 99 pounds for the 15.9-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 1991 Subaru XT have a bigger gas tank than the Mazda MX-6?
No, they match: both top out at 15.9 gallons in 1991.
Has the 1991 Subaru XT had a fuel pump or fuel system recall?
No. None of the 3 recalls NHTSA lists for the 1991 Subaru XT involve the fuel system.
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).
- Recalls: NHTSA recall database (Subaru fuel system recalls).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.