Cadillac CT4 Gas Tank Size & Fuel Capacity by Year
17.0–17.4gal · 64–66 L
Across 7 model years (2020–2026), the Cadillac CT4 has used tanks from 17.0–17.4 gallons. The 2026 model holds 17.0 gallons.
Pick your model year
How the tank changed over the years
Cadillac CT4 tank size by generation
Model years with the same tank sizes, grouped. A change usually marks a new generation or a redesign.
Cadillac CT4 tank size by year
| Year | Tank | Liters | Best highway range | Trims |
|---|---|---|---|---|
| 2026 Cadillac CT4 | 17.0 gallons | 64 L | 544 mi | 5 |
| 2025 Cadillac CT4 | 17.0 gallons | 64 L | 544 mi | 5 |
| 2024 Cadillac CT4 | 17.0 gallons | 64 L | 544 mi | 5 |
| 2023 Cadillac CT4 | 17.0 gallons | 64 L | 578 mi | 5 |
| 2022 Cadillac CT4 | 17.0 gallons | 64 L | 578 mi | 4 |
| 2021 Cadillac CT4 | 17.0 gallons | 64 L | 578 mi | 4 |
| 2020 Cadillac CT4 | 17.4 gallons | 66 L | 592 mi | 4 |
Frequently asked questions
What size gas tank does the Cadillac CT4 have?
The 2026 Cadillac CT4 holds 17.0 gallons. Older years range from 17.0–17.4 gallons; the table has every year.
Has the tank size changed over the years?
Yes. The largest tank changed in 2021.