Cadillac CT6 Engine Specifications
The 2020 Cadillac CT6 is offered with 2.0L–4.2L engines in 6 and 8 and 4-cylinder form, per EPA fuel-economy records.
Latest model year (2020):
The Cadillac CT6 is available with 6 3.6L and Automatic (S10) (All-Wheel Drive).
Cadillac CT6 Engine Specs — All Years
| Year | Trim | Cylinders | Displ. | Transmission | Drive | Fuel Type | Vehicle Class |
|---|---|---|---|---|---|---|---|
| 2020Config 1 of 2 | Auto (S10), 6 cyl, 3.6 L | 6 | 3.6L | Automatic (S10) | All-Wheel Drive | Regular Gasoline | Large Cars |
| 2020Config 2 of 2 | Auto (S10), 8 cyl, 4.2 L | 8 | 4.2L | Automatic (S10) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2019Config 1 of 4 | Auto (S10), 4 cyl, 2.0 L | 4 | 2.0L | Automatic (S10) | Rear-Wheel Drive | Premium Gasoline | Large Cars |
| 2019Config 2 of 4 | Auto (S10), 6 cyl, 3.0 L | 6 | 3.0L | Automatic (S10) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2019Config 3 of 4 | Auto (S10), 6 cyl, 3.6 L | 6 | 3.6L | Automatic (S10) | All-Wheel Drive | Regular Gasoline | Large Cars |
| 2019Config 4 of 4 | Auto (S10), 8 cyl, 4.2 L | 8 | 4.2L | Automatic (S10) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2018Config 1 of 4 | Auto (S8), 4 cyl, 2.0 L | 4 | 2.0L | Automatic (S8) | Rear-Wheel Drive | Premium Gasoline | Large Cars |
| 2018Config 2 of 4 | Auto (S8), 6 cyl, 3.0 L | 6 | 3.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2018Config 3 of 4 | Auto (S8), 6 cyl, 3.6 L | 6 | 3.6L | Automatic (S8) | All-Wheel Drive | Regular Gasoline | Large Cars |
| 2018Config 4 of 4 | Auto (variable gear ratios), 4 cyl, 2.0 L | 4 | 2.0L | Automatic (variable gear ratios) | Rear-Wheel Drive | Premium Gasoline | Midsize Cars |
| 2017Config 1 of 4 | Auto (S8), 4 cyl, 2.0 L | 4 | 2.0L | Automatic (S8) | Rear-Wheel Drive | Premium Gasoline | Large Cars |
| 2017Config 2 of 4 | Auto (S8), 6 cyl, 3.0 L | 6 | 3.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2017Config 3 of 4 | Auto (S8), 6 cyl, 3.6 L | 6 | 3.6L | Automatic (S8) | All-Wheel Drive | Regular Gasoline | Large Cars |
| 2017Config 4 of 4 | Auto (variable gear ratios), 4 cyl, 2.0 L | 4 | 2.0L | Automatic (variable gear ratios) | Rear-Wheel Drive | Premium Gasoline | Midsize Cars |
| 2016Config 1 of 3 | Auto (S8), 4 cyl, 2.0 L | 4 | 2.0L | Automatic (S8) | Rear-Wheel Drive | Regular Gasoline | Large Cars |
| 2016Config 2 of 3 | Auto (S8), 6 cyl, 3.0 L | 6 | 3.0L | Automatic (S8) | All-Wheel Drive | Premium Gasoline | Large Cars |
| 2016Config 3 of 3 | Auto (S8), 6 cyl, 3.6 L | 6 | 3.6L | Automatic (S8) | All-Wheel Drive | Regular Gasoline | Large Cars |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
Cadillac CT6 data analysis
How Cadillac CT6 engine displacement varies
Across 17 configurations recorded for the 2016 through 2020 Cadillac CT6, engine displacement runs from 2 litres to 4.2 litres. The strongest figure belongs to the 2019 Cadillac CT6 (SIDI) at 2 litres, and the weakest to the 2019 car (SIDI) at 4.2 litres — a spread of 52%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Cadillac CT6 would be misleading.
What changed for 2020
Average engine displacement for the 2020 Cadillac CT6 is 3.9 litres, against 3.2 litres for the 2019 car — it rose by 0.7 litres. Buyers who care most about this figure should look at the earlier model years in the table above before assuming newest is best.
How to read this Cadillac CT6 data
This page lists every 2016 through 2020 Cadillac CT6 record we hold for this measurement — 17 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.
Configurations behind these Cadillac CT6 numbers
The 2016 through 2020 Cadillac CT6 entries here cover the variants SIDI and SIDI; PHEV. 2019 is the busiest model year in the record with 4 separate measured configurations, which is why a single quoted engine displacement figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.
Where these Cadillac CT6 figures come from
Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Cadillac CT6 record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.
Frequently Asked Questions About CT6 Engine Specs
What engine does the Cadillac CT6 have?
The Cadillac CT6 is available with 6 cylinder engines ranging up to 3.6L. Transmission and drivetrain options vary by trim. See the full table above.
Is the Cadillac CT6 available with all-wheel drive?
Yes, the Cadillac CT6 is available with all-wheel drive. Check the "Drive" column in the table above for specific trims.
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