2018 Hyundai Elantra GT Gas Tank Size & Fuel Capacity
Fuel tank capacity
14.0gal · 53 L
The 2018 Hyundai Elantra GT has a fuel tank capacity of 14.0 gallons (53 liters) on every trim.
A full tank is good for roughly 406–448 highway miles or 308–364 miles around town, going by the EPA ratings.
14.0 gal · Smaller than 83% of 2018 models we list.
Listed separately: 2018 Hyundai Elantra (14.0 gal).
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- Pump & gauge parts
- FAQ
2018 Hyundai Elantra GT fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Engine
- no difference
All 4 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr Hatchback 2.0L 4cyl 6A · FWD MPG 24 / 32Range 336 / 448 mi | 2.0L 4cyl 6A | FWD | 14.0 gal53 L | 24 / 32 | 336 / 448 mi | |
| 4dr Hatchback 2.0L 4cyl 6M · FWD MPG 23 / 31Range 322 / 434 mi | 2.0L 4cyl 6M | FWD | 14.0 gal53 L | 23 / 31 | 322 / 434 mi | |
| Sport 4dr Hatchback 1.6L 4cyl Turbo 6M · FWD MPG 22 / 29Range 308 / 406 mi | 1.6L 4cyl Turbo 6M | FWD | 14.0 gal53 L | 22 / 29 | 308 / 406 mi | |
| Sport 4dr Hatchback 1.6L 4cyl Turbo 7AM · FWD MPG 26 / 32Range 364 / 448 mi | 1.6L 4cyl Turbo 7AM | FWD | 14.0 gal53 L | 26 / 32 | 364 / 448 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 2018 Hyundai Elantra GT 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 25 MPG, a full 14.0-gallon tank covers about 350 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 14.0 | 406 | 308 |
| 3/4 | 10.5 | 305 | 231 |
| 1/2 | 7.0 | 203 | 154 |
| 1/4 | 3.5 | 102 | 77 |
| 1/8 | 1.8 | 51 | 39 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 600 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.
- EPA combined
- 25–28 MPG
- Tailpipe CO2
- 317–363 g/mi
- EPA greenhouse score
- 5–6 of 10
- Source
- EPA ratings
What it costs to fill up a 2018 Hyundai Elantra GT
$59.78 to fill the 14.0-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 |
|---|---|---|---|---|
| 14.0 gal | Regular | $4.27 | $59.78 | $44.83 |
By region, 14.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $56.28 |
| Midwest | $4.27 | $59.78 |
| Gulf CoastLowest | $3.70 | $51.80 |
| Rocky Mountain | $4.46 | $62.44 |
| West Coast | $5.42 | $75.88 |
| CaliforniaHighest | $5.89 | $82.46 |
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
- 14.0-gallon tank$59.78
- A year of driving (15,000 mi)$2,562
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Elantra GT tank size in other years
The tank changed for 2018: 14.0 gal, up from 13.2 gal on the 2017 Elantra GT.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2020 Elantra GT | 14.0 gal | 448 mi |
| 2019 Elantra GT | 14.0 gal | 448 mi |
| 2018 Elantra GT | 14.0 gal | 448 mi |
| 2017 Elantra GT | 13.2 gal | 422 mi |
| 2016 Elantra GT | 13.2 gal | 436 mi |
| 2015 Elantra GT | 13.2 gal | 449 mi |
| 2014 Elantra GT | 13.2 gal | 449 mi |
| 2013 Elantra GT | 12.8 gal | 474 mi |
2018 Hyundai Elantra GT vs similar 2018 hatchbacks
At 14.0 gallons, the Elantra GT's largest tank ranks second of the six 2018 hatchbacks compared here. The Volkswagen Beetle carries the most (14.5 gal) and the Kia Rio the least (11.9 gal).
| 2018 model | Tank | Longest highway range |
|---|---|---|
| Volkswagen Beetle | 14.5 gal | 493 mi |
| Hyundai Elantra GT | 14.0 gal | 448 mi |
| Toyota Corolla iM | 14.0 gal | 504 mi |
| MINI Clubman | 13.2 gal | 449 mi |
| Ford Focus ST | 12.4 gal | 372 mi |
| Kia Rio | 11.9 gal | 440 mi |
Other 2018 hatchbacks of a similar size, one model per brand.
2018 Hyundai Elantra GT fuel system recalls
None of the 1 recall NHTSA lists for the 2018 Hyundai Elantra GT involve the fuel system.
2018 Hyundai Elantra GT fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2018 Hyundai Elantra GT, 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 2018 Hyundai Elantra GT?
The 2018 Hyundai Elantra GT holds 14.0 gallons (53 liters) on every trim we list.
How many gallons and liters does the 2018 Hyundai Elantra GT gas tank hold?
The 2018 Hyundai Elantra GT tank holds 53 liters, or 14.0 gallons in US gallons.
How far can a 2018 Hyundai Elantra GT go on a full tank?
About 406–448 miles on the highway and 308–364 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 2018 Hyundai Elantra GT go on a quarter tank?
About 102 highway miles or 77 in town from the 14.0-gallon tank, which has roughly 3.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2018 Hyundai Elantra GT take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2018 Hyundai Elantra GT?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 14.0-gallon tank from empty costs $59.78. It ranges from $51.80 in the Gulf Coast to $82.46 in California.
How much does a full tank of gas weigh in a 2018 Hyundai Elantra GT?
About 87 pounds for the 14.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2018 Hyundai Elantra GT have a bigger gas tank than the Toyota Corolla iM?
No, they match: both top out at 14.0 gallons in 2018.
Has the 2018 Hyundai Elantra GT had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 2018 Hyundai Elantra GT 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 (Hyundai 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.