Does the 2026 Kia K5 need premium gas?
No. Regular.
$0extra a year
- Regular listed for the LXS FWD.
- All 5 trims list regular.
- Premium by choice: $240 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 |
|---|---|---|---|---|---|
| LXS FWD | 2.5L 4cyl | Regular | 30 | $1,280 | $1,520 |
| GT-Line FWD | 2.5L | Regular | 29 | $1,324 | $1,572 |
| GT-Line AWD | 2.5L 4cyl | Regular | 27 | $1,422 | $1,689 |
| GT FWD | 2.5L 4cyl | Regular | 27 | $1,422 | $1,689 |
| EX FWD | 2.5L 4cyl | Regular | 29 | $1,324 | $1,572 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2026 Kia K5 | LXS FWD | Regular |
| 2026 Hyundai Sonata | SE FWD | Regular |
| 2026 Nissan Altima | SV FWD | Regular |
| 2026 Subaru Impreza | Sport AWD | Regular |
| 2026 Honda Accord | LX FWD | Regular |
| 2026 Toyota Camry | LE FWD | Regular |
| 2026 Kia K4 Hatchback | EX 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