2018 Cadillac CT6 Plug-In MPG and Fuel Economy
On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2018 Cadillac CT6 Plug-In.
The 2018 Cadillac CT6 Plug-In has a 59 and 61 kW 3-Phase AC electric motor which is charged via standard charger.
All MPG estimates are "MPG equivalent". This is a conversion of electric energy consumption to a gasoline equivalent.
Whether you are considering a purchase of the car, or just wanting to find out how economical and environmentally friendly (or un-friendly) your 2018 Cadillac CT6 Plug-In is, we have the information you need.
🛣 How Many Miles per Gallon (MPG) Does a 2018 Cadillac CT6 Plug-In Get?
First off, the most commonly asked question. A 2018 Cadillac CT6 Plug-In gets up to 23 miles per gallon in the city, and 29 miles per gallon on the highway.
The combined average MPG for the 2018 Cadillac CT6 Plug-In is 25 miles per gallon.
💵 What is the Average Yearly Fuel Cost for a 2018 Cadillac CT6 Plug-In?
The estimated fuel costs for the 2018 Cadillac CT6 Plug-In is $2,950 per year.
That value has 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.
If you were to compare a 2018 Cadillac CT6 Plug-In to an average vehicle over 5 years, you will save $2,500 on fuel.
🛢 How Many Barrels of Petroleum Does a 2018 Cadillac CT6 Plug-In Consume?
The 2018 Cadillac CT6 Plug-In will consume roughly 5 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.
💨 How Many Grams of CO2 Does a 2018 Cadillac CT6 Plug-In Emit?
For every mile driven, the 2018 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 74 trees would be needed to offset emissions from the 2018 Cadillac CT6 Plug-In.
Overview
The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2018 Cadillac CT6 Plug-In.
| City MPG | 23 |
|---|---|
| Highway MPG | 29 |
| Combined MPG | 25 |
| Save/Spend vs Average Car | Save $2,500 |
| Fuel Cost | $2,950 |
| Fuel Type 1 | Premium and Electricity |
| Fuel Type 2 | Electricity |
| Electric Motor | 59 and 61 kW 3-Phase AC |
| ATV Type | Plug-in Hybrid |
| Barrels of Petroleum | 5 |
| Grams of CO2 | 2,160,000 |
| Trees Needed to Offset | 103 |
| Drive | Rear-Wheel Drive |
| Cylinders | 4 |
| Displacement | 2 |
| Transmission | Automatic (variable gear ratios) |
| Vehicle Class | Midsize Cars |
| Start/Stop? | Yes |
| Supercharged? | No |
| Turbocharged? | Yes |
Related Cadillac Models from 2018
If you're interested in other Cadillac models from 2018, you can find them in the table below. You can click the model link to find miles per gallon and emission information for that model.
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/cadillac/ct6-plug-in/2018">2018 Cadillac CT6 Plug-In MPG and Fuel Economy</a>
"2018 Cadillac CT6 Plug-In MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/cadillac/ct6-plug-in/2018.
"2018 Cadillac CT6 Plug-In MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/cadillac/ct6-plug-in/2018. Accessed January 3, 2026.
2018 Cadillac CT6 Plug-In MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/cadillac/ct6-plug-in/2018.