Cadillac CT6 Transmission

The 2020 Cadillac CT6 uses Automatic (S10), Automatic (S8), Automatic (variable gear ratios) transmissions, depending on engine and trim.

Latest model year (2020):

The Cadillac CT6 comes with Automatic (S10).

Verifiedfueleconomy.gov · Verified August 9, 2026

Cadillac CT6 Transmission — All Years

YearTrimEngineTransmissionDriveMPG Comb.
2020Config 1 of 2Auto (S10), 6 cyl, 3.6 L6 3.6LAutomatic (S10)All-Wheel Drive21
2020Config 2 of 2Auto (S10), 8 cyl, 4.2 L8 4.2LAutomatic (S10)All-Wheel Drive17
2019Config 1 of 4Auto (S10), 4 cyl, 2.0 L4 2.0LAutomatic (S10)Rear-Wheel Drive28
2019Config 2 of 4Auto (S10), 6 cyl, 3.0 L6 3.0LAutomatic (S10)All-Wheel Drive21
2019Config 3 of 4Auto (S10), 6 cyl, 3.6 L6 3.6LAutomatic (S10)All-Wheel Drive21
2019Config 4 of 4Auto (S10), 8 cyl, 4.2 L8 4.2LAutomatic (S10)All-Wheel Drive17
2018Config 1 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LAutomatic (S8)Rear-Wheel Drive25
2018Config 2 of 4Auto (S8), 6 cyl, 3.0 L6 3.0LAutomatic (S8)All-Wheel Drive21
2018Config 3 of 4Auto (S8), 6 cyl, 3.6 L6 3.6LAutomatic (S8)All-Wheel Drive21
2018Config 4 of 4Auto (variable gear ratios), 4 cyl, 2.0 L4 2.0LAutomatic (variable gear ratios)Rear-Wheel Drive25
2017Config 1 of 4Auto (S8), 4 cyl, 2.0 L4 2.0LAutomatic (S8)Rear-Wheel Drive25
2017Config 2 of 4Auto (S8), 6 cyl, 3.0 L6 3.0LAutomatic (S8)All-Wheel Drive21
2017Config 3 of 4Auto (S8), 6 cyl, 3.6 L6 3.6LAutomatic (S8)All-Wheel Drive21
2017Config 4 of 4Auto (variable gear ratios), 4 cyl, 2.0 L4 2.0LAutomatic (variable gear ratios)Rear-Wheel Drive26
2016Config 1 of 3Auto (S8), 4 cyl, 2.0 L4 2.0LAutomatic (S8)Rear-Wheel Drive25
2016Config 2 of 3Auto (S8), 6 cyl, 3.0 L6 3.0LAutomatic (S8)All-Wheel Drive21
2016Config 3 of 3Auto (S8), 6 cyl, 3.6 L6 3.6LAutomatic (S8)All-Wheel Drive21

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 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.

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 Transmission

What transmission does the Cadillac CT6 have?

The Cadillac CT6 is offered with Automatic (S10), Automatic (S8), Automatic (variable gear ratios) (2020 and earlier model years). Availability depends on engine and trim — see the year-by-year table above.

Does the Cadillac CT6 come with a manual transmission?

No manual transmission is listed for the Cadillac CT6 in the EPA data we track; all listed configurations are automatic or CVT.

View full Cadillac CT6 specs

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