Fuel tank capacity
31.0gal · 117 L
The 1991 GMC Jimmy has a fuel tank capacity of 31.0 gallons (117 liters).
A full tank is good for roughly 403 highway miles or 341 miles around town, going by the EPA ratings.
31.0 gal · Bigger than 92% of 1991 models we list.
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 2dr SUV 4WD 5.7L 8cyl 4M · 4WD MPG 11 / 13Range 341 / 403 mi | 5.7L 8cyl 4M | 4WD | 31.0 gal117 L | 11 / 13 | 341 / 403 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 12 MPG, a full 31.0-gallon tank covers about 372 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 31.0 | 403 | 341 |
| 3/4 | 23.3 | 302 | 256 |
| 1/2 | 15.5 | 202 | 171 |
| 1/4 | 7.8 | 101 | 85 |
| 1/8 | 3.9 | 50 | 43 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,250 gallons, roughly 40 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.
$132.37 to fill the 31.0-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 |
|---|---|---|---|---|
| 31.0 gal | Regular | $4.27 | $132.37 | $99.28 |
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $124.62 |
| Midwest | $4.27 | $132.37 |
| Gulf CoastLowest | $3.70 | $114.70 |
| Rocky Mountain | $4.46 | $138.26 |
| West Coast | $5.42 | $168.02 |
| CaliforniaHighest | $5.89 | $182.59 |
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.
The 1991 Jimmy uses the same 31.0 gal tank as the 1990 model.
| Model year | Tank | Longest highway range |
|---|---|---|
| 1996 Jimmy | 18.0–19.0 gal | 380 mi |
| 1995 Jimmy | 19.0–20.0 gal | 440 mi |
| 1994 Jimmy | 20.0 gal | 400 mi |
| 1993 Jimmy | 20.0 gal | 440 mi |
| 1992 Jimmy | 20.0 gal | 400 mi |
| 1991 Jimmy | 31.0 gal | 403 mi |
| 1990 Jimmy | 31.0 gal | 403 mi |
The Jimmy has the largest tank of the six 1991 SUVs compared here, 31.0 gallons against 31.0 for the Chevrolet Blazer.
| 1991 model | Tank | Longest highway range |
|---|---|---|
| GMC Jimmy | 31.0 gal | 403 mi |
| Chevrolet Blazer | 31.0 gal | 403 mi |
| Toyota Land Cruiser | 25.1 gal | 326 mi |
| Isuzu Trooper | 21.9 gal | 372 mi |
| Jeep Grand Wagoneer | 20.3 gal | 244 mi |
| Oldsmobile Bravada | 20.0 gal | 400 mi |
Other 1991 SUVs of a similar size, one model per brand.
NHTSA lists 1 fuel-system recall for the 1991 GMC Jimmy, out of 4 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
Vehicles have been shipped with the fuel tank sender seal out of position.
Risk: In the event of rollover accident, an out of postionseal could allow fuel spillage in excess of the amount prescribed by FMVSS 301.spilled fuel could ignite near an ignition source.
Remedy: Replace sender seals.
The 1991 GMC Jimmy holds 31.0 gallons (117 liters).
The 1991 GMC Jimmy tank holds 117 liters, or 31.0 gallons in US gallons.
About 403 miles on the highway and 341 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
About 101 highway miles or 85 in town from the 31.0-gallon tank, which has roughly 7.8 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 31.0-gallon tank from empty costs $132.37. It ranges from $114.70 in the Gulf Coast to $182.59 in California.
About 192 pounds for the 31.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
No, they match: both top out at 31.0 gallons in 1991.
Yes. NHTSA lists 1 fuel-system recall for the 1991 GMC Jimmy: 91V108000 (storage). 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.