2019 Cadillac CT6 AWD MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2019 Cadillac CT6 AWD.

The 2019 Cadillac CT6 AWD has 3 model options: Automatic (S10) 6-cyl, 3.6 L, Automatic (S10) 6-cyl, 3.0 L and Automatic (S10) 8-cyl, 4.2 L.

The 2019 Cadillac CT6 AWD Automatic (S10) 6-cyl, 3.6 L runs on regular gasoline and is in the Large Cars car class.

The 2019 Cadillac CT6 AWD Automatic (S10) 6-cyl, 3.0 L runs on premium gasoline and is in the Large Cars car class.

The 2019 Cadillac CT6 AWD Automatic (S10) 8-cyl, 4.2 L runs on premium gasoline and is in the Large Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 2019 Cadillac CT6 AWD Get?

Across all models, the combined average MPG for the 2019 Cadillac CT6 AWD is 20 miles per gallon.

The table below breaks down the MPG for each model option:

Model OptionCombined MPGCity MPGHighway MPG
Automatic (S10) 6-cyl, 3.6 L211827
Automatic (S10) 6-cyl, 3.0 L211826
Automatic (S10) 8-cyl, 4.2 L171425

💵 What is the Average Yearly Fuel Cost for a 2019 Cadillac CT6 AWD?

The average fuel costs for all models of the 2019 Cadillac CT6 AWD is $3,617.

The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

Comparing a 2019 Cadillac CT6 AWD to an average vehicle over 5 years, you will spend $6,583 more on fuel.

The table below shows the fuel costs and 5-year save/spend for each model option:

Model OptionFuel Cost5-Year Save/Spend
Automatic (S10) 6-cyl, 3.6 L$3,000spend $3,500 more
Automatic (S10) 6-cyl, 3.0 L$3,500spend $6,000 more
Automatic (S10) 8-cyl, 4.2 L$4,350spend $10,250 more

The 2019 Cadillac CT6 AWD is also subject to the Gas Guzzler Tax, which is a federal tax on vehicles that has a combined MPG of less than 22.5.

The tables below show how much you can expect to pay in Gas Guzzler taxes.

Model OptionGas Guzzler Tax
Automatic (S10) 8-cyl, 4.2 L$3,000

🛢 How Many Barrels of Petroleum Does a 2019 Cadillac CT6 AWD Consume?

Across all models, the average number barrels of petroleum that the 2019 Cadillac CT6 AWD will consume in one year is 15 barrels.

The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.

Model OptionBarrels
Automatic (S10) 6-cyl, 3.6 L14
Automatic (S10) 6-cyl, 3.0 L14
Automatic (S10) 8-cyl, 4.2 L18

💨 How Many Grams of CO2 Does a 2019 Cadillac CT6 AWD Emit?

The 2019 Cadillac CT6 AWD will emit an average of about 6,850,000 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 233 trees would be needed to offset emissions from the 2019 Cadillac CT6 AWD.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 3 2019 Cadillac CT6 AWD model options.

Automatic (S10) 6-cyl, 3.6 L

The table below contains all of the details we have for the 2019 Cadillac CT6 AWD Automatic (S10) 6-cyl, 3.6 L:

City MPG18
Highway MPG27
Combined MPG21
Save/Spend vs Average CarSpend $3,500
Fuel Cost$3,000
Fuel Type 1Regular
Barrels of Petroleum14
Grams of CO26,300,000
Trees Needed to Offset300
DriveAll-Wheel Drive
Cylinders6
Displacement3.6
TransmissionAutomatic (S10)
Vehicle ClassLarge Cars
Start/Stop?Yes
Supercharged?No
Turbocharged?No

Automatic (S10) 6-cyl, 3.0 L

The table below contains all of the details we have for the 2019 Cadillac CT6 AWD Automatic (S10) 6-cyl, 3.0 L:

City MPG18
Highway MPG26
Combined MPG21
Save/Spend vs Average CarSpend $6,000
Fuel Cost$3,500
Fuel Type 1Premium
Barrels of Petroleum14
Grams of CO26,435,000
Trees Needed to Offset306
DriveAll-Wheel Drive
Cylinders6
Displacement3
TransmissionAutomatic (S10)
Vehicle ClassLarge Cars
Start/Stop?No
Supercharged?No
Turbocharged?Yes

Automatic (S10) 8-cyl, 4.2 L

The table below contains all of the details we have for the 2019 Cadillac CT6 AWD Automatic (S10) 8-cyl, 4.2 L:

City MPG14
Highway MPG25
Combined MPG17
Save/Spend vs Average CarSpend $10,250
Gas Guzzler Tax$3,000
Fuel Cost$4,350
Fuel Type 1Premium
Barrels of Petroleum18
Grams of CO27,815,000
Trees Needed to Offset372
DriveAll-Wheel Drive
Cylinders8
Displacement4.2
TransmissionAutomatic (S10)
Vehicle ClassLarge Cars
Start/Stop?Yes
Supercharged?No
Turbocharged?Yes

Link To or Reference This Page

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

  • "2019 Cadillac CT6 AWD MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/cadillac/ct6-awd/2019.

  • "2019 Cadillac CT6 AWD MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/cadillac/ct6-awd/2019. Accessed January 3, 2026.

  • 2019 Cadillac CT6 AWD MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/cadillac/ct6-awd/2019.