1991 Hyundai Sonata Gas Tank Size & Fuel Capacity
Fuel tank capacity
15.9–17.2gal · 60–65 L
The 1991 Hyundai Sonata has a fuel tank capacity of 15.9 to 17.2 gallons (60–65 liters), depending on the trim. The most common size is 15.9 gallons, used on 2 trims.
A full tank is good for roughly 378–413 highway miles or 275–286 miles around town, going by the EPA ratings.
17.2 gal · Smaller than 57% of 1991 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- Pump & gauge parts
- FAQ
1991 Hyundai Sonata fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Engine
All 3 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr Sedan 2.4L 4cyl 5M · FWD MPG 18 / 26Range 286 / 413 mi | 2.4L 4cyl 5M | FWD | 15.9 gal60 L | 18 / 26 | 286 / 413 mi | |
| GLS 4dr Sedan 2.4L 4cyl 5M · FWD MPG 18 / 26Range 286 / 413 mi | 2.4L 4cyl 5M | FWD | 15.9 gal60 L | 18 / 26 | 286 / 413 mi | |
| GLS SE 4dr Sedan 3.0L 6cyl 4A · FWD MPG 16 / 22Range 275 / 378 mi | 3.0L 6cyl 4A | FWD | 17.2 gal65 L | 16 / 22 | 275 / 378 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 Hyundai Sonata 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 15.9-gallon tank covers about 334 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.9 | 413 | 286 |
| 3/4 | 11.9 | 310 | 215 |
| 1/2 | 8.0 | 207 | 143 |
| 1/4 | 4.0 | 103 | 72 |
| 1/8 | 2.0 | 52 | 36 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 714 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
- 18–21 MPG
- Tailpipe CO2
- 423–494 g/mi
- Source
- EPA ratings
What it costs to fill up a 1991 Hyundai Sonata
$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 |
| 17.2 gal | Regular | $4.27 | $73.44 | $55.08 |
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
- 17.2-gallon tank$73.44
- A year of driving (15,000 mi)$3,050
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Sonata tank size in other years
The 1991 Sonata uses the same 15.9–17.2 gal tank sizes as the 1990 model.
| Model year | Tank | Longest highway range |
|---|---|---|
| 1996 Sonata | 17.2 gal | 447 mi |
| 1995 Sonata | 16.9 gal | 439 mi |
| 1994 Sonata | 17.2 gal | 413 mi |
| 1993 Sonata | 15.8 gal | 379 mi |
| 1992 Sonata | 15.9 gal | 382 mi |
| 1991 Sonata | 15.9–17.2 gal | 413 mi |
| 1990 Sonata | 15.9–17.2 gal | 413 mi |
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1991 Hyundai Sonata vs similar 1991 sedans
At 17.2 gallons, the Sonata's largest tank ranks second of the seven 1991 sedans compared here. The Volkswagen Passat carries the most (18.5 gal) and the Oldsmobile Cutlass Ciera the least (15.7 gal).
| 1991 model | Tank | Longest highway range |
|---|---|---|
| Volkswagen Passat | 18.5 gal | 500 mi |
| Hyundai Sonata | 15.9–17.2 gal | 413 mi |
| Plymouth Acclaim | 16.0 gal | 496 mi |
| Dodge Spirit | 16.0 gal | 496 mi |
| Mazda 626 | 15.9 gal | 461 mi |
| Buick Century | 15.7 gal | 440 mi |
| Oldsmobile Cutlass Ciera | 15.7 gal | 440 mi |
Other 1991 sedans of a similar size, one model per brand.
1991 Hyundai Sonata fuel system recalls
None of the 1 recall NHTSA lists for the 1991 Hyundai Sonata involve the fuel system.
1991 Hyundai Sonata fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 1991 Hyundai Sonata, so a failed pump or gauge is a normal repair. These are the part numbers the makers list for it.
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Frequently asked questions
What is the fuel tank capacity of the 1991 Hyundai Sonata?
The 1991 Hyundai Sonata holds between 15.9 and 17.2 gallons, depending on the trim. 15.9 gallons is the usual size; the 17.2-gallon tank comes on the GLS SE 4dr Sedan (3.0L 6cyl 4A).
How many gallons and liters does the 1991 Hyundai Sonata gas tank hold?
The 1991 Hyundai Sonata tank holds 60–65 liters, or 15.9–17.2 gallons in US gallons.
Which 1991 Hyundai Sonata has the biggest gas tank?
The 17.2-gallon tank is on the GLS SE 4dr Sedan. The smallest tank, 15.9 gallons, is on the 4dr Sedan.
How far can a 1991 Hyundai Sonata go on a full tank?
About 378–413 miles on the highway and 275–286 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 Hyundai Sonata go on a quarter tank?
About 103 highway miles or 72 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 Hyundai Sonata take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1991 Hyundai Sonata?
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 Hyundai Sonata?
About 107 pounds for the 17.2-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 1991 Hyundai Sonata have a bigger gas tank than the Mazda 626?
Yes. The 1991 Hyundai Sonata holds up to 17.2 gallons; the 1991 Mazda 626 holds up to 15.9.
Has the 1991 Hyundai Sonata had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 1991 Hyundai Sonata 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 (Hyundai 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.