Mercedes-Benz E-Class Coupe 2021 Operator's Manual page 343

* NOTE Premature engine wear through
unleaded regular gasoline
Impairment of the longevity and performance
of the engine.
If unleaded premium grade gasoline is
unavailable and you have to refuel using
unleaded regular gasoline:
Only fill the fuel tank to half full with
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unleaded regular gasoline and refill as
soon as possible with unleaded pre‐
mium grade gasoline.
Do not drive at the maximum design
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speed.
Avoid sudden acceleration and engine
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speeds over 3000 rpm.
Further information on fuel is available at the fol‐
lowing locations:
At a gas station
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At a qualified specialist workshop
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On the https://www.mbusa.com (USA only)
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Notes on additives in gasoline
Observe the notes on operating fluids
( page 339).
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* NOTE Damage from use of unsuitable
additives
Even small amounts of the wrong additive
may lead to malfunctions occurring.
Only add cleaning additives recommen‐
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ded by Mercedes-Benz to the fuel.
Mercedes-Benz recommends that you use
brand-name fuels with additives.
In some countries, the fuel available may not
have sufficient additives. Residue could build up
in the fuel injection system as a result. In this
case, in consultation with an authorized
Mercedes-Benz Center, mix the fuel with the
cleaning additive recommended by Mercedes-
Benz. Observe the notes and mixing ratios indi‐
cated on the tank.
Technical data 341
Tank content and reserve fuel
Capacity
Model Total capacity
All models 17.4 gal (66.0 liters)
Model Of which reserve
All models 1.8 gal (7.0 liters)
Engine oil
Notes on engine oil
Observe the notes on operating fluids
( page 339).
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