2019 Mercedes-Benz SL450 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 Mercedes-Benz SL450.

The 2019 Mercedes-Benz SL450 runs on premium gasoline and is in the Two Seaters car class.

Whether you are considering a purchase of the car, or just wanting to find out how economical and environmentally friendly (or un-friendly) your 2019 Mercedes-Benz SL450 is, we have the information you need.

🛣 How Many Miles per Gallon (MPG) Does a 2019 Mercedes-Benz SL450 Get?

First off, the most commonly asked question. A 2019 Mercedes-Benz SL450 gets up to 20 miles per gallon in the city, and 28 miles per gallon on the highway.

The combined average MPG for the 2019 Mercedes-Benz SL450 is 23 miles per gallon.

💵 What is the Average Yearly Fuel Cost for a 2019 Mercedes-Benz SL450?

The estimated fuel costs for the 2019 Mercedes-Benz SL450 is $3,200 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 2019 Mercedes-Benz SL450 to an average vehicle over 5 years, you will spend $4,500 more on fuel.

🛢 How Many Barrels of Petroleum Does a 2019 Mercedes-Benz SL450 Consume?

The 2019 Mercedes-Benz SL450 will consume roughly 13 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 2019 Mercedes-Benz SL450 Emit?

For every mile driven, the 2019 Mercedes-Benz SL450 will emit 387 grams of CO2, which is about 5,805,000 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 198 trees would be needed to offset emissions from the 2019 Mercedes-Benz SL450.

Overview

The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2019 Mercedes-Benz SL450.

City MPG20
Highway MPG28
Combined MPG23
Save/Spend vs Average CarSpend $4,500
Fuel Cost$3,200
Fuel Type 1Premium
Barrels of Petroleum13
Grams of CO25,805,000
Trees Needed to Offset276
DriveRear-Wheel Drive
Cylinders6
Displacement3
TransmissionAutomatic 9-spd
Vehicle ClassTwo Seaters
Start/Stop?Yes
Supercharged?No
Turbocharged?Yes

Related Mercedes-Benz Models from 2019

If you're interested in other Mercedes-Benz models from 2019, 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.

  • "2019 Mercedes-Benz SL450 MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/mercedes-benz/sl450/2019.

  • "2019 Mercedes-Benz SL450 MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/mercedes-benz/sl450/2019. Accessed January 3, 2026.

  • 2019 Mercedes-Benz SL450 MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/mercedes-benz/sl450/2019.