What is the fuel tank size of the 2018 Cadillac CT6?

Gasoline Only: 19.2 gal; PLUG-IN: 15.6 gal. Source: 2018 Cadillac CT6 Owner's Manual.

2018 Cadillac CT6 Fuel tank size

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2018 Cadillac CT6 Owner's Manual, PDF page 431

72.7 L 19.2 galOpen the manual at this page ↗Added Oct 16, 2026

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Fuel tank size · Gasoline Only · PDF page 431
72.7 L 19.2 gal

Fuel tank size · PLUG-IN · PDF page 431
59.0 L 15.6 gal

See every quote (2 values)

2 values

Applies to	Value	Manual says	Page
Gasoline Only	19.2 gal	“72.7 L 19.2 gal”	PDF page 431 ↗
PLUG-IN	15.6 gal	“59.0 L 15.6 gal”	PDF page 431 ↗

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