FuelFacts

Does the 2020 Mercedes-Benz S560 Convertible need premium gas?

Every gas trim of this model takes premium.

Trim (engine / transmission)FuelMPGFuel/yr
4.0L 8-cyl, Automatic 9-spd, RWDPREMIUM20$3,850
The EPA records the fuel each version was tested on. Whether premium is strictly required or just recommended is an owner's-manual detail the EPA dataset doesn't include — so we don't guess it.

1 trim(s) · EPA FuelEconomy.gov · retrieved 2026-06-14.