Does the 2026 Cadillac CT4 need premium gas?
Yes. Premium.
$277extra a year
- Premium listed for the Luxury RWD.
- All 12 trims list premium.
- Required or only recommended: the data does not say.
- 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 |
|---|---|---|---|---|---|
| 4dr Sdn Luxury RWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| Luxury RWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| 4dr Sdn Premium Luxury RWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| Premium Luxury RWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| 4dr Sdn Sport RWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| Sport RWD | 2.0L 4cyl | Premium | 26 | $1,477 | $1,754 |
| CT4-V 4dr Sdn RWD | 2.7L 4cyl | Premium | 23 | $1,670 | $1,983 |
| V V-Series AWD | 2.7L 4cyl | Premium | 23 | $1,670 | $1,983 |
| V V-Series Blackwing RWD | 3.6L 6cyl | Premium | 18 | $2,133 | $2,533 |
| Luxury AWD | 2.0L 4cyl | Premium | 25 | $1,536 | $1,824 |
| Premium Luxury AWD | 2.0L 4cyl | Premium | 25 | $1,536 | $1,824 |
| Sport AWD | 2.0L 4cyl | Premium | 25 | $1,536 | $1,824 |
Rivals
| Car | Cheapest trim | Grade |
|---|---|---|
| 2026 Cadillac CT4 | Luxury RWD | Premium |
| 2026 Hyundai Elantra N | N TCR Edition FWD | Premium |
| 2026 Volkswagen Jetta GLI | Autobahn FWD | Regular |
| 2026 Subaru WRX | AWD | Premium |
| 2026 Audi A3 | 40 TFSI Premium AWD | 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