Fuel tank capacity
16.0gal · 61 L
The 1990 Pontiac Grand Prix has a fuel tank capacity of 16.0 gallons (61 liters) on every trim.
A full tank is good for roughly 368–432 highway miles or 240–304 miles around town, going by the EPA ratings.
16.0 gal · Smaller than 64% of 1990 models we list.
Listed separately: 1990 Pontiac Grand Am (13.6 gal).
What changes the tank sizeTap an option to filter the table
All 6 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| LE 2dr Coupe 2.3L 4cyl · FWD MPG 19 / 27Range 304 / 432 mi | 2.3L 4cyl | FWD | 16.0 gal61 L | 19 / 27 | 304 / 432 mi | |
| LE 4dr Sedan 2.3L 4cyl 3A · FWD MPG 19 / 27Range 304 / 432 mi | 2.3L 4cyl 3A | FWD | 16.0 gal61 L | 19 / 27 | 304 / 432 mi | |
| SE 2dr Coupe 3.1L 6cyl 5M · FWD MPG 15 / 26Range 240 / 416 mi | 3.1L 6cyl 5M | FWD | 16.0 gal61 L | 15 / 26 | 240 / 416 mi | |
| STE 4dr Sedan 3.1L 6cyl 5M · FWD MPG 15 / 26Range 240 / 416 mi | 3.1L 6cyl 5M | FWD | 16.0 gal61 L | 15 / 26 | 240 / 416 mi | |
| STE Turbo 4dr Sedan 3.1L 6cyl 4A · FWD MPG 15 / 23Range 240 / 368 mi | 3.1L 6cyl 4A | FWD | 16.0 gal61 L | 15 / 23 | 240 / 368 mi | |
| Turbo 2dr Coupe 3.1L 6cyl 4A · FWD MPG 15 / 23Range 240 / 368 mi | 3.1L 6cyl 4A | FWD | 16.0 gal61 L | 15 / 23 | 240 / 368 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 22 MPG, a full 16.0-gallon tank covers about 352 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 16.0 | 432 | 304 |
| 3/4 | 12.0 | 324 | 228 |
| 1/2 | 8.0 | 216 | 152 |
| 1/4 | 4.0 | 108 | 76 |
| 1/8 | 2.0 | 54 | 38 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 682 gallons, roughly 43 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.
$68.32 to fill the 16.0-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 |
|---|---|---|---|---|
| 16.0 gal | Regular | $4.27 | $68.32 | $51.24 |
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $64.32 |
| Midwest | $4.27 | $68.32 |
| Gulf CoastLowest | $3.70 | $59.20 |
| Rocky Mountain | $4.46 | $71.36 |
| West Coast | $5.42 | $86.72 |
| CaliforniaHighest | $5.89 | $94.24 |
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 Grand Prix model year we list.
| Model year | Tank | Longest highway range |
|---|---|---|
| 1995 Grand Prix | 17.1 gal | 445 mi |
| 1994 Grand Prix | 16.5 gal | 429 mi |
| 1993 Grand Prix | 16.5 gal | 446 mi |
| 1992 Grand Prix | 16.5 gal | 429 mi |
| 1991 Grand Prix | 16.5 gal | 462 mi |
| 1990 Grand Prix | 16.0 gal | 432 mi |
The Grand Prix has the smallest tank of the six 1990 sedans compared here: 16.0 gallons, against 19.0 for the Ford Thunderbird.
| 1990 model | Tank | Longest highway range |
|---|---|---|
| Ford Thunderbird | 19.0 gal | 456 mi |
| Mercury Cougar | 19.0 gal | 456 mi |
| Chevrolet Lumina | 16.5–17.1 gal | 428 mi |
| Oldsmobile Cutlass Supreme | 16.5 gal | 512 mi |
| Buick Regal | 16.5 gal | 446 mi |
| Pontiac Grand Prix | 16.0 gal | 432 mi |
Other 1990 sedans of a similar size, one model per brand.
NHTSA lists 1 fuel-system recall for the 1990 Pontiac Grand Prix, out of 8 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
During a rear end collision, the rear exhaust system heat shield, which is welded to the tail pipe assembly, may puncture the fuel tank.
Risk: In the presence of an external source of ignition, this could result in a fire.
Remedy: Remove rear exhaust system heat shield from the pipe assembly.
The 1990 Pontiac Grand Prix holds 16.0 gallons (61 liters) on every trim we list.
The 1990 Pontiac Grand Prix tank holds 61 liters, or 16.0 gallons in US gallons.
About 368–432 miles on the highway and 240–304 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
About 108 highway miles or 76 in town from the 16.0-gallon tank, which has roughly 4.0 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 16.0-gallon tank from empty costs $68.32. It ranges from $59.20 in the Gulf Coast to $94.24 in California.
About 99 pounds for the 16.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
No. The 1990 Oldsmobile Cutlass Supreme holds up to 16.5 gallons; the 1990 Pontiac Grand Prix holds up to 16.0.
Yes. NHTSA lists 1 fuel-system recall for the 1990 Pontiac Grand Prix: 90V036000 (storage · tank assembly). 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.