Mercedes-Benz SL400 MPG and Fuel Economy

Mercedes-Benz have been manufacturing models of SL400 for 2 years, with the latest vehicle in 2016 having a combined MPG of 23.

The estimated fuel cost for the 2016 Mercedes-Benz SL400 is $3,200 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 spend $4,500 more on fuel driving a 2016 Mercedes-Benz SL400.

🛢 The Mercedes-Benz SL400 will consume roughly 13 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Mercedes-Benz SL400 will emit 392 grams of CO2, which is about 5,880,000 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 280 trees would be needed to offset emissions from the Mercedes-Benz SL400.

The table below is a complete list of the 2 Mercedes-Benz SL400 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
2016 Mercedes-Benz SL40023$3,200
2015 Mercedes-Benz SL40023$3,200

Link To or Reference This Page

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

  • "Mercedes-Benz SL400 MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/mercedes-benz/sl400.

  • "Mercedes-Benz SL400 MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/mercedes-benz/sl400. Accessed January 3, 2026.

  • Mercedes-Benz SL400 MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/mercedes-benz/sl400.