Cadillac CT6 Plug-In MPG and Fuel Economy

Cadillac have been manufacturing models of CT6 Plug-In for 2 years, with the latest vehicle in 2018 having a combined MPG of 25.

The estimated fuel cost for the 2018 Cadillac CT6 Plug-In is $2,950 per year.

Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

💵 Compared to an average vehicle over 5 years, you will save $2,500 on fuel driving a 2018 Cadillac CT6 Plug-In.

🛢 The Cadillac CT6 Plug-In will consume roughly 5 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Cadillac CT6 Plug-In will emit 144 grams of CO2, which is about 2,160,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 103 trees would be needed to offset emissions from the Cadillac CT6 Plug-In.

The table below is a complete list of the 2 Cadillac CT6 Plug-In fuel efficiency specifications we have data for.

Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.

VehicleCombined MPGFuel Cost
2018 Cadillac CT6 Plug-In25$2,950
2017 Cadillac CT6 Plug-In26$2,850

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "Cadillac CT6 Plug-In MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/cadillac/ct6-plug-in.

  • "Cadillac CT6 Plug-In MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/cadillac/ct6-plug-in. Accessed January 3, 2026.

  • Cadillac CT6 Plug-In MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/cadillac/ct6-plug-in.