2018 Cadillac CT6 transmission: CVT or automatic?
Some do: the 2.0L 4-cylinder turbo uses an 8-speed automatic; the 2.0L 4-cylinder turbo plug-in hybrid uses a CVT (continuously variable); the 3.0L 6-cylinder turbo uses an 8-speed automatic; the 3.6L 6-cylinder uses an 8-speed automatic.
Key takeaways
- 4 EPA-certified configurations listed for the 2018 Cadillac CT6.
- CVTs need CVT-specific fluid - never top one up with ordinary automatic transmission fluid.
- The transmission can differ by engine and drive layout, so match your row by engine size.
| Engine | Transmission | EPA code | Drive |
|---|---|---|---|
| 2.0L 4-cylinder turbo | 8-speed automatic | Automatic (S8) | RWD |
| 2.0L 4-cylinder turbo plug-in hybrid | CVT (continuously variable) | Automatic (variable gear ratios) | RWD |
| 3.0L 6-cylinder turbo | 8-speed automatic | Automatic (S8) | AWD |
| 3.6L 6-cylinder | 8-speed automatic | Automatic (S8) | AWD |
Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov). Each row is one certified configuration; a trim or option not sold in a configuration is not listed.
Useful for the 2018 Cadillac CT6
CVT fluidCVTs need CVT-specific fluid - match your manual's specShop CVT fluid Fluid transfer pumpFor transmissions filled through a side plugShop pumps
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