What gas does the 2017 Cadillac CT6 take?

It depends on the engine: premium gasoline for the 2.0L 4-cylinder turbo, 2.0L 4-cylinder turbo plug-in hybrid and 3.0L 6-cylinder turbo; regular gasoline for the 3.6L 6-cylinder.

Key takeaways

  • 4 EPA-certified configurations listed for the 2017 Cadillac CT6.
  • Rated on premium: if the owner's manual says premium required, use premium; if it says recommended, regular works with some loss of power and economy.
  • None of the listed engines is flex-fuel, so do not use E85.
2017 Cadillac CT6: every EPA-listed configuration
EngineTransmissionDriveRated fuelE85
2.0L 4-cylinder turbo8-speed automaticRWDpremium gasolineNo
2.0L 4-cylinder turbo plug-in hybridCVT (continuously variable)RWDpremium gasolineNo
3.0L 6-cylinder turbo8-speed automaticAWDpremium gasolineNo
3.6L 6-cylinder8-speed automaticAWDregular gasolineNo

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.

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