- Newest year: 2026
- Gas
- Midsize cars
2020-2026 Cadillac CT5 MPG & Fuel Cost
7 model years · 15–27 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 2 of 10 midsize car configurations, MY2026. Ranked against all rated configurations, not sales-weighted.
2020-2026 Cadillac CT5 at a glance
The 2020-2026 Cadillac CT5 covers 7 model years in the EPA database (52 configurations in all), rated 15–27 MPG combined. The newest model year, 2026, costs about $3,140 a year to fuel for its most efficient version, the CT5 2.0L 4-cyl turbo RWD (26 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2021, 2022, 2023, 2024, 2025 and 2026. The best combined rating in the generation, 27 MPG, was reached in 2022, 2023 and 2024.
2020-2026 Cadillac CT5 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2026 | Gas | 15–26 MPG | $3,140–$5,300 | Ratings changed |
| 2025 | Gas | 15–26 MPG | $3,090–$5,300 | Ratings changed |
| 2024 | Gas | 15–27 MPG | $3,020–$5,360 | Ratings changed |
| 2023 | Gas | 15–27 MPG | $3,020–$5,360 | Ratings changed |
| 2022 | Gas | 15–27 MPG | $3,020–$5,190 | Ratings changed |
| 2021 | Gas | 21–26 MPG | $3,070–$3,830 | Ratings changed |
| 2020 | Gas | 20–26 MPG | $3,070–$4,020 | First year |
What the 2026 CT5 2.0L 4-cyl turbo RWD costs to drive
Per month
$262
$3,140 a year ÷ 12
Per 25 miles
$5.23
Per 100 miles
$20.93
Five years
$15,700
5 × the yearly cost, prices held at today's level
vs the midsize car median
$1,030more a year
Class median $2,110 a year, MY2026
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2026 Cadillac CT5 MPG
Versus 2025: The most efficient configuration stays at 26 MPG. Its annual cost goes from $3,090 to $3,140, $50 more.
Gas configurations (8)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CT5 2.0L 4-cyl turbo RWD (Most efficient) | 2.0L 4-cyl turbo | RWD | 22 | 31 | 26 | $3,140 |
| CT5 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 30 | 24 | $3,350 |
| CT5 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 19 | 28 | 22 | $3,570 |
| CT5 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 27 | 21 | $3,770 |
| V 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 18 | 27 | 21 | $3,820 |
| V 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 17 | 26 | 20 | $4,020 |
| V 6.2L 8-cyl supercharged RWD Automatic (S10) | 6.2L 8-cyl supercharged | RWD | 13 | 20 | 15 | $5,240 |
| V 6.2L 8-cyl supercharged RWD Manual 6-spd | 6.2L 8-cyl supercharged | RWD | 13 | 20 | 15 | $5,300 |
8 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2025 Cadillac CT5 MPG
15–26 MPG · $3,090–$5,300/yr
Versus 2024: The most efficient configuration moves from 27 to 26 MPG, down 1. Its annual cost goes from $3,020 to $3,090, $70 more.
Gas configurations (8)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CT5 2.0L 4-cyl turbo RWD (Most efficient) | 2.0L 4-cyl turbo | RWD | 23 | 32 | 26 | $3,090 |
| CT5 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 30 | 25 | $3,270 |
| CT5 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 19 | 28 | 22 | $3,570 |
| CT5 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,810 |
| V 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 18 | 27 | 21 | $3,830 |
| V 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 17 | 26 | 20 | $4,020 |
Show 0 more configurations
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| V 6.2L 8-cyl supercharged RWD Automatic (S10) | 6.2L 8-cyl supercharged | RWD | 13 | 20 | 15 | $5,230 |
| V 6.2L 8-cyl supercharged RWD Manual 6-spd | 6.2L 8-cyl supercharged | RWD | 13 | 20 | 15 | $5,300 |
8 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2024 Cadillac CT5 MPG
15–27 MPG · $3,020–$5,360/yr
Versus 2023: The most efficient configuration stays at 27 MPG. Its annual cost stays at $3,020.
Gas configurations (8)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CT5 2.0L 4-cyl turbo RWD (Most efficient) | 2.0L 4-cyl turbo | RWD | 23 | 33 | 27 | $3,020 |
| CT5 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 22 | 30 | 25 | $3,240 |
| CT5 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 19 | 27 | 22 | $3,670 |
| CT5 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 18 | 27 | 21 | $3,830 |
Show 0 more configurations
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| V 6.2L 8-cyl supercharged RWD Automatic (S10) | 6.2L 8-cyl supercharged | RWD | 13 | 21 | 16 | $5,070 |
| V 6.2L 8-cyl supercharged RWD Manual 6-spd | 6.2L 8-cyl supercharged | RWD | 13 | 21 | 15 | $5,360 |
8 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2023 Cadillac CT5 MPG
15–27 MPG · $3,020–$5,360/yr
Versus 2022: The most efficient configuration stays at 27 MPG. Its annual cost stays at $3,020.
Gas configurations (8)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CT5 2.0L 4-cyl turbo RWD (Most efficient) | 2.0L 4-cyl turbo | RWD | 23 | 33 | 27 | $3,020 |
| CT5 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 22 | 30 | 25 | $3,240 |
| CT5 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 19 | 27 | 22 | $3,660 |
| CT5 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 18 | 27 | 21 | $3,830 |
Show 0 more configurations
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| V 6.2L 8-cyl supercharged RWD Automatic (S10) | 6.2L 8-cyl supercharged | RWD | 13 | 21 | 16 | $5,070 |
| V 6.2L 8-cyl supercharged RWD Manual 6-spd | 6.2L 8-cyl supercharged | RWD | 13 | 21 | 15 | $5,360 |
8 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2022 Cadillac CT5 MPG
15–27 MPG · $3,020–$5,190/yr
Versus 2021: The most efficient configuration moves from 26 to 27 MPG, up 1. Its annual cost goes from $3,070 to $3,020, $50 less.
Gas configurations (8)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CT5 2.0L 4-cyl turbo RWD (Most efficient) | 2.0L 4-cyl turbo | RWD | 23 | 33 | 27 | $3,020 |
| CT5 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 22 | 30 | 25 | $3,240 |
| CT5 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 19 | 27 | 22 | $3,660 |
| CT5 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 18 | 27 | 21 | $3,830 |
Show 0 more configurations
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| V 6.2L 8-cyl supercharged RWD Automatic (S10) | 6.2L 8-cyl supercharged | RWD | 13 | 22 | 16 | $5,050 |
| V 6.2L 8-cyl supercharged RWD Manual 6-spd | 6.2L 8-cyl supercharged | RWD | 13 | 21 | 15 | $5,190 |
8 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2021 Cadillac CT5 MPG
21–26 MPG · $3,070–$3,830/yr
Versus 2020: The most efficient configuration stays at 26 MPG. Its annual cost stays at $3,070.
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CT5 2.0L 4-cyl turbo RWD (Most efficient) | 2.0L 4-cyl turbo | RWD | 23 | 32 | 26 | $3,070 |
| CT5 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 31 | 25 | $3,270 |
| CT5 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 19 | 28 | 22 | $3,650 |
| CT5 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 26 | 21 | $3,780 |
| V 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 18 | 27 | 21 | $3,830 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2020 Cadillac CT5 MPG
20–26 MPG · $3,070–$4,020/yr
Gas configurations (6)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| CT5 2.0L 4-cyl turbo RWD (Most efficient) | 2.0L 4-cyl turbo | RWD | 23 | 32 | 26 | $3,070 |
| CT5 2.0L 4-cyl turbo AWD | 2.0L 4-cyl turbo | AWD | 21 | 31 | 25 | $3,250 |
| CT5 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 19 | 26 | 21 | $3,750 |
| V 3.0L 6-cyl turbo RWD | 3.0L 6-cyl turbo | RWD | 18 | 26 | 21 | $3,750 |
| CT5 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 18 | 25 | 21 | $3,920 |
| V 3.0L 6-cyl turbo AWD | 3.0L 6-cyl turbo | AWD | 17 | 25 | 20 | $4,020 |
6 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the CT5 2.0L 4-cyl turbo RWD: $3,740 in California and $2,720 in Texas, a $1,020 difference.
- California $3,740
- Washington $3,520
- New York $3,100
- Florida $2,870
- Texas $2,720
Similar cars
Closest combined MPG among MY2026 midsize car models.
Generations
- 2020-2026 (2020)
Frequently asked questions
What gas mileage does the 2020-2026 Cadillac CT5 get?
EPA rates the 2020-2026 Cadillac CT5 at 15–27 MPG combined across 52 configurations and 7 model years. The most efficient version, the 2024 CT5 2.0L 4-cyl turbo RWD, is rated 27 MPG (23 city, 33 highway).
Which years had the best MPG in the 2020-2026 Cadillac CT5?
The CT5 2.0L 4-cyl turbo RWD reached the generation's best combined rating, 27 MPG, in 2022, 2023 and 2024. The lowest top rating, 26 MPG, was in 2020, 2021, 2025 and 2026.
Did EPA ratings change during the 2020-2026 Cadillac CT5?
Yes. Ratings changed in 2021, 2022, 2023, 2024, 2025 and 2026.
How much does it cost to fuel a 2026 Cadillac CT5 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the CT5 2.0L 4-cyl turbo RWD costs about $3,140 a year. Across all 8 configurations the cost runs $3,140–$5,300 a year. That is a $2,160 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2026 Cadillac CT5 100 miles?
About $20.93 per 100 miles for the CT5 2.0L 4-cyl turbo RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $20.93 and $35.33 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2026 Cadillac CT5 more efficient in the city or on the highway?
The CT5 2.0L 4-cyl turbo RWD is rated 22 city and 31 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2026 Cadillac CT5 compare with other midsize car configurations?
The CT5 2.0L 4-cyl turbo RWD costs about $3,140 a year to fuel, $1,030 more than the class median of $2,110, and less than 2 of 10 midsize car configurations. The comparison covers all 94 rated midsize car configurations for MY2026, not weighted by sales.
Is the 2026 Cadillac CT5 different from the 2025 model?
The most efficient configuration stays at 26 MPG. Its annual cost goes from $3,090 to $3,140, $50 more. EPA lists 8 configurations for 2026 against 8 configurations for 2025. See the 2025 Cadillac CT5 for that year.