2002 Buick Regal Gas Tank Size & Fuel Capacity
Fuel tank capacity
17.5gal · 66 L
The 2002 Buick Regal has a fuel tank capacity of 17.5 gallons (66 liters) on every trim.
A full tank is good for roughly 438–473 highway miles or 280–298 miles around town, going by the EPA ratings.
17.5 gal · Smaller than 64% of 2002 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
2002 Buick Regal fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Engine
- no difference
All 2 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | Fuel | MPG city / hwy | Range city / hwy |
|---|---|---|---|---|---|---|
| GS 4dr Sedan 3.8L 6cyl S/C 4A · FWD · Premium (required) MPG 16 / 25Range 280 / 438 mi | 3.8L 6cyl S/C 4A | FWD | 17.5 gal66 L | Premiumrequired | 16 / 25 | 280 / 438 mi |
| LS 4dr Sedan 3.8L 6cyl 4A · FWD · Regular MPG 17 / 27Range 298 / 473 mi | 3.8L 6cyl 4A | FWD | 17.5 gal66 L | Regular | 17 / 27 | 298 / 473 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 2002 Buick Regal 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 20 MPG, a full 17.5-gallon tank covers about 350 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 17.5 | 473 | 298 |
| 3/4 | 13.1 | 354 | 223 |
| 1/2 | 8.8 | 236 | 149 |
| 1/4 | 4.4 | 118 | 74 |
| 1/8 | 2.2 | 59 | 37 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 750 gallons, roughly 43 full tanks.
In real driving: owners who log fill-ups at fueleconomy.gov average 26.9 MPG in the Regal (9 drivers), about 471 miles on a full 17.5-gallon tank.
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
- 19–20 MPG
- Tailpipe CO2
- 444–468 g/mi
- Source
- EPA ratings
What it costs to fill up a 2002 Buick Regal
$92.40 to fill the 17.5-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 17.5 gal | Premium | $5.28 | $92.40 | $69.30 |
| 17.5 gal | Regular | $4.27 | $74.72 | $56.04 |
By region, 17.5-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $86.27 |
| Midwest | $5.37 | $93.98 |
| Gulf CoastLowest | $4.57 | $79.98 |
| Rocky Mountain | $5.12 | $89.60 |
| West Coast | $6.08 | $106.40 |
| CaliforniaHighest | $6.36 | $111.30 |
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
- 17.5-gallon tank$92.40
- A year of driving (15,000 mi)$3,960
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
Regal tank size in other years
The 2002 Regal uses the same 17.5 gal tank as every Regal since 1999.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2013 Regal | 15.8–18.0 gal | 569 mi |
| 2012 Regal | 18.0 gal | 558 mi |
| 2011 Regal | 18.0 gal | 540 mi |
| 2004 Regal | 17.0 gal | 476 mi |
| 2003 Regal | 17.0 gal | 459 mi |
| 2002 Regal | 17.5 gal | 473 mi |
| 2001 Regal | 17.5 gal | 490 mi |
| 2000 Regal | 17.5 gal | 473 mi |
| 1999 Regal | 17.5 gal | 473 mi |
| 1998 Regal | 17.0 gal | 459 mi |
| 1997 Regal | 17.0 gal | 459 mi |
2002 Buick Regal vs similar 2002 sedans
At 17.5 gallons, the Regal's largest tank ranks fifth of the seven 2002 sedans compared here. The Mitsubishi Diamante carries the most (19.0 gal) and the Oldsmobile Intrigue the least (17.0 gal).
| 2002 model | Tank | Longest highway range |
|---|---|---|
| Mitsubishi Diamante | 19.0 gal | 437 mi |
| Hyundai XG350 | 18.5 gal | 444 mi |
| Nissan Maxima | 18.5 gal | 481 mi |
| Mercury Sable | 18.0 gal | 450 mi |
| Buick Regal | 17.5 gal | 473 mi |
| Pontiac Grand Prix | 17.5 gal | 473 mi |
| Oldsmobile Intrigue | 17.0 gal | 459 mi |
Other 2002 sedans of a similar size, one model per brand.
2002 Buick Regal fuel system recalls
None of the 3 recalls NHTSA lists for the 2002 Buick Regal involve the fuel system.
2002 Buick Regal fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2002 Buick Regal, 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 2002 Buick Regal?
The 2002 Buick Regal holds 17.5 gallons (66 liters) on every trim we list.
How many gallons and liters does the 2002 Buick Regal gas tank hold?
The 2002 Buick Regal tank holds 66 liters, or 17.5 gallons in US gallons.
How far can a 2002 Buick Regal go on a full tank?
About 438–473 miles on the highway and 280–298 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 2002 Buick Regal go on a quarter tank?
About 118 highway miles or 74 in town from the 17.5-gallon tank, which has roughly 4.4 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
How many miles does a 2002 Buick Regal really get on a tank?
Drivers who log their fill-ups at fueleconomy.gov average 26.9 MPG in the 2002 Buick Regal (9 drivers), which works out to about 471 miles on a full 17.5-gallon tank.
What gas does the 2002 Buick Regal take?
Premium unleaded (required), or Regular unleaded, depending on the engine. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2002 Buick Regal?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 17.5-gallon tank from empty costs $92.40. It ranges from $79.98 in the Gulf Coast to $111.30 in California.
How much does a full tank of gas weigh in a 2002 Buick Regal?
About 109 pounds for the 17.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2002 Buick Regal have a bigger gas tank than the Mitsubishi Diamante?
No. The 2002 Mitsubishi Diamante holds up to 19.0 gallons; the 2002 Buick Regal holds up to 17.5.
Has the 2002 Buick Regal had a fuel pump or fuel system recall?
No. None of the 3 recalls NHTSA lists for the 2002 Buick Regal 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).
- Real-world MPG: driver-reported fill-ups shared at fueleconomy.gov (My MPG).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.