1990 Buick Electra Gas Tank Size & Fuel Capacity
Fuel tank capacity
18.0gal · 68 L
The 1990 Buick Electra has a fuel tank capacity of 18.0 gallons (68 liters) on every trim.
A full tank is good for roughly 450 highway miles or 288 miles around town, going by the EPA ratings.
18.0 gal · Smaller than 54% of 1990 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
1990 Buick Electra fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| Limited 4dr Sedan 3.8L 6cyl 4A · FWD MPG 16 / 25Range 288 / 450 mi | 3.8L 6cyl 4A | FWD | 18.0 gal68 L | 16 / 25 | 288 / 450 mi | |
| Park Avenue 4dr Sedan 3.8L 6cyl 4A · FWD MPG 16 / 25Range 288 / 450 mi | 3.8L 6cyl 4A | FWD | 18.0 gal68 L | 16 / 25 | 288 / 450 mi | |
| Park Avenue Ultra 4dr Sedan 3.8L 6cyl 4A · FWD MPG 16 / 25Range 288 / 450 mi | 3.8L 6cyl 4A | FWD | 18.0 gal68 L | 16 / 25 | 288 / 450 mi | |
| T Type 4dr Sedan 3.8L 6cyl 4A · FWD MPG 16 / 25Range 288 / 450 mi | 3.8L 6cyl 4A | FWD | 18.0 gal68 L | 16 / 25 | 288 / 450 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 1990 Buick Electra 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 19 MPG, a full 18.0-gallon tank covers about 342 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.0 | 450 | 288 |
| 3/4 | 13.5 | 338 | 216 |
| 1/2 | 9.0 | 225 | 144 |
| 1/4 | 4.5 | 113 | 72 |
| 1/8 | 2.3 | 56 | 36 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 789 gallons, roughly 44 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 MPG
- Tailpipe CO2
- 468 g/mi
- Source
- EPA ratings
What it costs to fill up a 1990 Buick Electra
$76.86 to fill the 18.0-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 |
|---|---|---|---|---|
| 18.0 gal | Regular | $4.27 | $76.86 | $57.64 |
By region, 18.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $72.36 |
| Midwest | $4.27 | $76.86 |
| Gulf CoastLowest | $3.70 | $66.60 |
| Rocky Mountain | $4.46 | $80.28 |
| West Coast | $5.42 | $97.56 |
| CaliforniaHighest | $5.89 | $106.02 |
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
- 18.0-gallon tank$76.86
- A year of driving (15,000 mi)$3,371
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Electra tank size in other years
1990 is the first Electra model year we list.
| Model year | Tank | Longest highway range |
|---|---|---|
| 1990 Electra | 18.0 gal | 450 mi |
1990 Buick Electra vs similar 1990 sedans
The Electra has the largest tank of the six 1990 sedans compared here, 18.0 gallons against 18.0 for the Oldsmobile Ninety-Eight.
| 1990 model | Tank | Longest highway range |
|---|---|---|
| Buick Electra | 18.0 gal | 450 mi |
| Oldsmobile Ninety-Eight | 18.0 gal | 450 mi |
| Pontiac Bonneville | 18.0 gal | 450 mi |
| Eagle Premier | 17.0 gal | 408 mi |
| Chrysler Imperial | 16.0 gal | 368 mi |
| Dodge Monaco | 16.0 gal | 384 mi |
Other 1990 sedans of a similar size, one model per brand.
1990 Buick Electra fuel system recalls
None of the 1 recall NHTSA lists for the 1990 Buick Electra involve the fuel system.
1990 Buick Electra fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 1990 Buick Electra, 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 1990 Buick Electra?
The 1990 Buick Electra holds 18.0 gallons (68 liters) on every trim we list.
How many gallons and liters does the 1990 Buick Electra gas tank hold?
The 1990 Buick Electra tank holds 68 liters, or 18.0 gallons in US gallons.
How far can a 1990 Buick Electra go on a full tank?
About 450 miles on the highway and 288 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 1990 Buick Electra go on a quarter tank?
About 113 highway miles or 72 in town from the 18.0-gallon tank, which has roughly 4.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 1990 Buick Electra take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1990 Buick Electra?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 18.0-gallon tank from empty costs $76.86. It ranges from $66.60 in the Gulf Coast to $106.02 in California.
How much does a full tank of gas weigh in a 1990 Buick Electra?
About 112 pounds for the 18.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 1990 Buick Electra have a bigger gas tank than the Oldsmobile Ninety-Eight?
No, they match: both top out at 18.0 gallons in 1990.
Has the 1990 Buick Electra had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 1990 Buick Electra 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 (Buick 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.