Does the 2026 Kia K4 need premium gas?
No. Regular.
$0extra a year
- Regular listed for the LX FWD.
- All 13 trims list regular.
- Premium by choice: $218 more a year.
- 64% of 55 sedans (2026) list premium.
12,000 miles a year. Gas $3.20. Premium $0.60 more.
| Trim | Engine | Grade | Mpg | Regular, a year | Premium, a year |
|---|---|---|---|---|---|
| LX FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| LX Sedan FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| LXS FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| LXS Sedan FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| EX FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| EX Sedan FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| Hatchback EX FWD | 2.0L 4cyl | Regular | 30 | $1,280 | $1,520 |
| GT-Line FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| GT-Line Sedan FWD | 2.0L 4cyl | Regular | 33 | $1,164 | $1,382 |
| Hatchback GT-Line FWD | 2.0L 4cyl | Regular | 30 | $1,280 | $1,520 |
| GT-Line Turbo FWD | 1.6L 4cyl | Regular | 28 | $1,371 | $1,629 |
| GT-Line Turbo Sedan FWD | 1.6L 4cyl | Regular | 28 | $1,371 | $1,629 |
| Hatchback GT-Line Turbo FWD | 1.6L 4cyl | Regular | 28 | $1,371 | $1,629 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2026 Kia K4 | LX FWD | Regular |
| 2026 Hyundai Elantra | SE FWD | Regular |
| 2026 Honda Civic | LX FWD | Regular |
| 2026 Toyota Corolla | LE FWD | Regular |
| 2026 Nissan Sentra | S FWD | Regular |
| 2026 Volkswagen Jetta | S FWD | Regular |
| 2026 Toyota Corolla Hatchback | SE FWD | Regular |
What this cannot tell you
Check the fuel door or manual before you fill.
Gas prices and the premium gap change by state.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree