2019 Buick LaCrosse Gas Tank Size & Fuel Capacity
Fuel tank capacity
15.8–16.2gal · 60–61 L
The 2019 Buick LaCrosse has a fuel tank capacity of 15.8 to 16.2 gallons (60–61 liters), depending on the trim. The most common size is 15.8 gallons, used on 6 trims.
A full tank is good for roughly 470–553 highway miles or 316–395 miles around town, going by the EPA ratings.
16.2 gal · Smaller than 60% of 2019 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
2019 Buick LaCrosse fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- Engine
All 9 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 1SV 4dr Sedan 2.5L 4cyl mild hybrid 6A · FWD MPG 25 / 35Range 395 / 553 mi | 2.5L 4cyl mild hybrid 6A | FWD | 15.8 gal60 L | 25 / 35 | 395 / 553 mi | |
| Avenir 4dr Sedan 3.6L 6cyl 9A · FWD MPG 20 / 30Range 316 / 474 mi | 3.6L 6cyl 9A | FWD | 15.8 gal60 L | 20 / 30 | 316 / 474 mi | |
| Essence 4dr Sedan 2.5L 4cyl mild hybrid 6A · FWD MPG 25 / 35Range 395 / 553 mi | 2.5L 4cyl mild hybrid 6A | FWD | 15.8 gal60 L | 25 / 35 | 395 / 553 mi | |
| Preferred 4dr Sedan 2.5L 4cyl mild hybrid 6A · FWD MPG 25 / 35Range 395 / 553 mi | 2.5L 4cyl mild hybrid 6A | FWD | 15.8 gal60 L | 25 / 35 | 395 / 553 mi | |
| Premium 4dr Sedan 2.5L 4cyl mild hybrid 6A · FWD MPG 25 / 35Range 395 / 553 mi | 2.5L 4cyl mild hybrid 6A | FWD | 15.8 gal60 L | 25 / 35 | 395 / 553 mi | |
| Sport Touring 4dr Sedan 3.6L 6cyl 9A · FWD MPG 20 / 30Range 316 / 474 mi | 3.6L 6cyl 9A | FWD | 15.8 gal60 L | 20 / 30 | 316 / 474 mi | |
| Avenir 4dr Sedan AWD 3.6L 6cyl 9A · AWD MPG 20 / 29Range 324 / 470 mi | 3.6L 6cyl 9A | AWD | 16.2 gal61 L | 20 / 29 | 324 / 470 mi | |
| Essence 4dr Sedan AWD 3.6L 6cyl 9A · AWD MPG 20 / 29Range 324 / 470 mi | 3.6L 6cyl 9A | AWD | 16.2 gal61 L | 20 / 29 | 324 / 470 mi | |
| Premium 4dr Sedan AWD 3.6L 6cyl 9A · AWD MPG 20 / 29Range 324 / 470 mi | 3.6L 6cyl 9A | AWD | 16.2 gal61 L | 20 / 29 | 324 / 470 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 2019 Buick LaCrosse 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 29 MPG, a full 15.8-gallon tank covers about 458 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 15.8 | 553 | 395 |
| 3/4 | 11.9 | 415 | 296 |
| 1/2 | 7.9 | 277 | 198 |
| 1/4 | 4.0 | 138 | 99 |
| 1/8 | 2.0 | 69 | 49 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 517 gallons, roughly 33 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
- 23–24 MPG
- Tailpipe CO2
- 374–383 g/mi
- EPA greenhouse score
- 5 of 10
- Source
- EPA ratings
What it costs to fill up a 2019 Buick LaCrosse
$67.47 to fill the 15.8-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 |
|---|---|---|---|---|
| 15.8 gal | Regular | $4.27 | $67.47 | $50.60 |
| 16.2 gal | Regular | $4.27 | $69.17 | $51.88 |
By region, 15.8-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $63.52 |
| Midwest | $4.27 | $67.47 |
| Gulf CoastLowest | $3.70 | $58.46 |
| Rocky Mountain | $4.46 | $70.47 |
| West Coast | $5.42 | $85.64 |
| CaliforniaHighest | $5.89 | $93.06 |
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
- 15.8-gallon tank$67.47
- 16.2-gallon tank$69.17
- A year of driving (15,000 mi)$2,209
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
LaCrosse tank size in other years
The 2019 LaCrosse uses the same 15.8–16.2 gal tank sizes as every LaCrosse since 2017.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2019 LaCrosse | 15.8–16.2 gal | 553 mi |
| 2018 LaCrosse | 15.8–16.2 gal | 553 mi |
| 2017 LaCrosse | 15.8–16.2 gal | 490 mi |
| 2016 LaCrosse | 18.5–19.5 gal | 546 mi |
| 2015 LaCrosse | 16.6–19.5 gal | 581 mi |
| 2014 LaCrosse | 15.8–19.0 gal | 553 mi |
2019 Buick LaCrosse vs similar 2019 sedans
At 16.2 gallons, the LaCrosse's largest tank ranks third of the seven 2019 sedans compared here. The Nissan Maxima carries the most (18.0 gal) and the Honda Clarity the least (7.0 gal).
| 2019 model | Tank | Longest highway range |
|---|---|---|
| Nissan Maxima | 18.0 gal | 540 mi |
| Mazda 6 | 16.4 gal | 574 mi |
| Buick LaCrosse | 15.8–16.2 gal | 553 mi |
| Hyundai Sonata Hybrid | 15.9 gal | 731 mi |
| Ford Fusion Energi | 14.0 gal | 560 mi |
| Toyota Avalon Hybrid | 13.2 gal | 581 mi |
| Honda Clarity | 7.0 gal | 280 mi |
Other 2019 sedans of a similar size, one model per brand.
2019 Buick LaCrosse fuel system recalls
None of the 2 recalls NHTSA lists for the 2019 Buick LaCrosse involve the fuel system.
2019 Buick LaCrosse fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2019 Buick LaCrosse, 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 2019 Buick LaCrosse?
The 2019 Buick LaCrosse holds between 15.8 and 16.2 gallons, depending on the trim. 15.8 gallons is the usual size; the 16.2-gallon tank comes on the Avenir 4dr Sedan AWD (3.6L 6cyl 9A).
How many gallons and liters does the 2019 Buick LaCrosse gas tank hold?
The 2019 Buick LaCrosse tank holds 60–61 liters, or 15.8–16.2 gallons in US gallons.
Which 2019 Buick LaCrosse has the biggest gas tank?
The 16.2-gallon tank is on the Avenir 4dr Sedan AWD, Essence 4dr Sedan AWD, Premium 4dr Sedan AWD. The smallest tank, 15.8 gallons, is on the 1SV 4dr Sedan.
Does AWD change the 2019 Buick LaCrosse gas tank?
Yes. FWD: 15.8 gal; AWD: 16.2 gal.
How far can a 2019 Buick LaCrosse go on a full tank?
About 470–553 miles on the highway and 316–395 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 2019 Buick LaCrosse go on a quarter tank?
About 138 highway miles or 99 in town from the 15.8-gallon tank, which has roughly 4.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2019 Buick LaCrosse take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2019 Buick LaCrosse?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 15.8-gallon tank from empty costs $67.47. It ranges from $58.46 in the Gulf Coast to $93.06 in California.
How much does a full tank of gas weigh in a 2019 Buick LaCrosse?
About 100 pounds for the 16.2-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2019 Buick LaCrosse have a bigger gas tank than the Toyota Avalon Hybrid?
Yes. The 2019 Buick LaCrosse holds up to 16.2 gallons; the 2019 Toyota Avalon Hybrid holds up to 13.2.
Has the 2019 Buick LaCrosse had a fuel pump or fuel system recall?
No. None of the 2 recalls NHTSA lists for the 2019 Buick LaCrosse 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.