2025 · Large Car · Gas

2025 Mercedes-Benz S-Class MPG & fuel economy

The 2025 Mercedes-Benz S-Class is a large car with one EPA-rated configuration. The most efficient version returns 15 MPG combined (12 city / 20 highway) on premium gasoline. Efficiency is unchanged from the 2024 model. Among 25 large cars rated for 2025, it ranks 23rd for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,950 a year to fuel.

Compare
Combined 15 MPG 12 MPG city · 20 MPG hwy
Driving range — not published for this model
Your fuel cost $3,950 15,000 mi/yr · $26.33 per 100 mi
Class rank, 2025 #23 of 25 Large Cars by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 2025 Mercedes-Benz S-Class's fuel average is 6.4 km/L (15.7 L/100 km), or 15 MPG combined: 5.1 km/L in the city and 8.5 km/L on the highway.

MPGkm/LL/100 km
City125.119.6
Highway208.511.8
Combined156.415.7

How it ranks among 2025 Large Cars

Full class ranking →
  1. 1Lucid Air146 MPGe $624
  2. 2Tesla Model S124 MPGe $732
  3. 3Dodge Charger EV98 MPGe $931
  4. 4Honda Civic Hybrid49 MPG $949
  5. 5Honda Accord Hybrid48 MPG $969
  6. 23Mercedes-Benz S-Class15 MPG $3,950
  7. 25Rolls-Royce Ghost14 MPG $4,232
2025 S-ClassOther large carsClass median: $1,795/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

S-Class MPG across model years

Full history →

1 EPA-rated configuration

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
AWD · 6.0L 12-cyl turbo · 9-speed automatic
Maybach S680 4matic		 Gas 12 MPG 20 MPG 15 MPG — $3,950

Specs (most efficient configuration)

Fuel
Premium gasoline
Engine / motor
6.0L 12-cyl turbo
Transmission
9-speed automatic
Drivetrain
AWD
Passenger volume
115 cu ft
Cargo volume
12 cu ft
Tailpipe CO₂
603 g/mi
EPA fuel economy score
2/10
EPA greenhouse gas score
2/10

2025 Mercedes-Benz S-Class vs. rivals

vs Audi S8 Hybrid 18 MPG · $3,292/yr S8 Hybrid saves $658/yr vs Genesis G90 Hybrid 20 MPG · $2,962/yr G90 Hybrid saves $988/yr vs Mercedes-Benz S-Class Hybrid 24 MPG · $2,469/yr S-Class Hybrid saves $1,481/yr vs Mercedes-Benz S-Class Plug-in Hybrid 63 MPGe + 23 MPG · $1,736/yr S-Class Plug-in Hybrid saves $2,214/yr vs Genesis G90 21 MPG · $2,821/yr G90 saves $1,129/yr vs Audi A8 Hybrid 22 MPG · $2,693/yr A8 Hybrid saves $1,257/yr vs Genesis G80 24 MPG · $2,469/yr G80 saves $1,481/yr vs Porsche Panamera 21 MPG · $2,821/yr Panamera saves $1,129/yr vs Rolls-Royce Phantom 14 MPG · $4,232/yr S-Class saves $282/yr vs Rolls-Royce Ghost 14 MPG · $4,232/yr S-Class saves $282/yr

Compare the 2025 S-Class

With any other car from any year, including other S-Class model years. Type a year to jump, e.g. "2015 Accord".

Same year, other powertrains: 2025 Mercedes-Benz S-Class Hybrid (24 MPG), 2025 Mercedes-Benz S-Class Plug-in Hybrid (63 MPGe + 23 MPG)

Frequently asked questions

What is the gas mileage of the 2025 Mercedes-Benz S-Class?

Up to 15 MPG combined (12 city / 20 highway).

What fuel does the 2025 Mercedes-Benz S-Class use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2025 Mercedes-Benz S-Class?

The 2025 Mercedes-Benz S-Class's fuel average is 6.4 km/L (15.7 L/100 km), or 15 MPG combined: 5.1 km/L in the city and 8.5 km/L on the highway.

How much does it cost to fuel the 2025 Mercedes-Benz S-Class per year?

About $3,950 at 15,000 miles a year with $3.95/gal premium gas, or $26.33 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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