Fuel tank capacity
15.0–20.0gal · 57–76 L
The 1990 Jeep Wrangler has a fuel tank capacity of 15.0 to 20.0 gallons (57–76 liters), depending on the trim. The most common size is 15.0 gallons, used on 3 trims.
A full tank is good for roughly 285–380 highway miles or 240–320 miles around town, going by the EPA ratings.
20.0 gal · Bigger than 63% of 1990 models we list.
What changes the tank sizeTap an option to filter the table
All 5 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 2dr SUV 4WD 2.5L 4cyl 5M · 4WD MPG 16 / 19Range 240 / 285 mi | 2.5L 4cyl 5M | 4WD | 15.0 gal57 L | 16 / 19 | 240 / 285 mi | |
| Islander 2dr SUV 4WD 2.5L 4cyl 5M · 4WD MPG 16 / 19Range 240 / 285 mi | 2.5L 4cyl 5M | 4WD | 15.0 gal57 L | 16 / 19 | 240 / 285 mi | |
| S 2dr SUV 4WD 2.5L 4cyl 5M · 4WD MPG 16 / 19Range 240 / 285 mi | 2.5L 4cyl 5M | 4WD | 15.0 gal57 L | 16 / 19 | 240 / 285 mi | |
| Laredo 2dr SUV 4WD 4.2L 6cyl 5M · 4WD MPG 15 / 18Range 300 / 360 mi | 4.2L 6cyl 5M | 4WD | 20.0 gal76 L | 15 / 18 | 300 / 360 mi | |
| Sahara 2dr SUV 4WD 2.5L 4cyl 5M · 4WD MPG 16 / 19Range 320 / 380 mi | 2.5L 4cyl 5M | 4WD | 20.0 gal76 L | 16 / 19 | 320 / 380 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.
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 17 MPG, a full 15.0-gallon tank covers about 255 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.0 | 285 | 240 |
| 3/4 | 11.3 | 214 | 180 |
| 1/2 | 7.5 | 143 | 120 |
| 1/4 | 3.8 | 71 | 60 |
| 1/8 | 1.9 | 36 | 30 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 882 gallons, roughly 59 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.
$64.05 to fill the 15.0-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 |
|---|---|---|---|---|
| 15.0 gal | Regular | $4.27 | $64.05 | $48.04 |
| 20.0 gal | Regular | $4.27 | $85.40 | $64.05 |
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $60.30 |
| Midwest | $4.27 | $64.05 |
| Gulf CoastLowest | $3.70 | $55.50 |
| Rocky Mountain | $4.46 | $66.90 |
| West Coast | $5.42 | $81.30 |
| CaliforniaHighest | $5.89 | $88.35 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
1990 is the first Wrangler model year we list.
| Model year | Tank | Longest highway range |
|---|---|---|
| 1995 Wrangler | 15.0–20.0 gal | 340 mi |
| 1994 Wrangler | 15.0–20.0 gal | 340 mi |
| 1993 Wrangler | 15.0–20.0 gal | 360 mi |
| 1992 Wrangler | 15.0–20.0 gal | 400 mi |
| 1991 Wrangler | 15.0 gal | 270 mi |
| 1990 Wrangler | 15.0–20.0 gal | 380 mi |
NHTSA lists 1 fuel-system recall for the 1990 Jeep Wrangler, out of 4 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
Vehicle description: multipurpose passenger vehicles equipped with plastic fuel tanks. The fuel tank sending unit gasket can crack causing fuel and fuel vapor leaks.
Risk: Fuel and fuel vapor leaked from the fuel tank can result in fire when exposed to a source of ignition.
Remedy: Replace the fuel tank sending unit gasket.
The 1990 Jeep Wrangler holds between 15.0 and 20.0 gallons, depending on the trim. 15.0 gallons is the usual size; the 20.0-gallon tank comes on the Laredo 2dr SUV 4WD (4.2L 6cyl 5M).
The 1990 Jeep Wrangler tank holds 57–76 liters, or 15.0–20.0 gallons in US gallons.
The 20.0-gallon tank is on the Laredo 2dr SUV 4WD, Sahara 2dr SUV 4WD. The smallest tank, 15.0 gallons, is on the 2dr SUV 4WD.
About 285–380 miles on the highway and 240–320 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
About 71 highway miles or 60 in town from the 15.0-gallon tank, which has roughly 3.8 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
Regular unleaded. The label inside the fuel door confirms it for your car.
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 15.0-gallon tank from empty costs $64.05. It ranges from $55.50 in the Gulf Coast to $88.35 in California.
About 124 pounds for the 20.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Yes. NHTSA lists 1 fuel-system recall for the 1990 Jeep Wrangler: 94V106000 (delivery · fuel pump). Check your VIN at nhtsa.gov/recalls to see if your car is affected.
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.