Engine Oil Notes; Fuel Additives - Mercedes-Benz GLA 250 2019 Operator's Manual

Service products and filling capacities
336
Do not mix such fuels with the fuel recom-
mended for your vehicle.
!
To ensure the longevity and full perform-
ance of the engine, only premium-grade
unleaded gasoline must be used.
If standard unleaded gasoline is unavailable
and you have to refuel with unleaded gaso-
line of a lower grade, observe the following
precautions:
Only fill the fuel tank to half full with regu-
R
lar unleaded gasoline and fill the rest with
premium-grade unleaded gasoline as soon
as possible.
Do not drive at the maximum speed.
R
Avoid sudden acceleration and engine
R
speeds over 3,000 rpm.
You will usually find information about the fuel
grade on the fuel pump. If you cannot find the
label on the fuel pump, ask the gas station
staff.
i
For further information, consult a qualified
specialist workshop or visit
http://www.mbusa.com (USA only).
GLA 250, GLA 250 4MATIC: as a temporary
measure, if the recommended fuel is not avail-
able, you may also use regular unleaded gaso-
line with an octane rating of 88 AKI/93 RON.
All other models: as a temporary measure, if
the recommended fuel is not available, you
may also use regular unleaded gasoline with
an octane rating of 87 AKI/91 RON. This may
reduce engine performance and increase fuel
consumption. Avoid driving at full throttle and
sudden acceleration. Never refuel using gaso-
line with a lower AKI.
i
The fuels you can use in your vehicle may
differ from the information in the Operator's
Manual depending on the country. The fuels
that have been approved for your vehicle
can be found on the instruction label on the
inside of the fuel filler flap.
Information on refueling (
Additives
!
Operating the engine with fuel additives
added later can lead to engine failure. Do
not mix fuel additives with fuel. This does
not include additives for the removal and
prevention of residue buildup. gasoline must
only be mixed with additives recommended
by Mercedes-Benz. Comply with the instruc-
page 143).
Y
tions for use on the product label. More
information about recommended additives
can be obtained from any authorized
Mercedes-Benz Center.
Mercedes-Benz recommends that you use
branded fuels that have additives.
The fuel quality available in some countries
may not be sufficient. Residue could build up
in the fuel injection system as a result. In such
cases, and in consultation with an authorized
Mercedes-Benz Center, the fuel may be mixed
with the cleaning additive recommended by
Mercedes-Benz. You must observe the notes
and mixing ratios specified on the container.
Engine oil
General notes
!
Do not use engine oil or an oil filter with
specifications deviating from those
expressly required for the prescribed service
intervals. Do not change the engine oil or oil
filter in order to set replacement intervals
longer than those prescribed. This could
otherwise cause damage to the engine or
exhaust gas aftertreatment.
Follow the instructions on the service inter-
val display for changing the engine oil. This
could otherwise cause damage to the
engine or exhaust gas aftertreatment.
When handling engine oil, observe the impor-
tant safety notes on service products
( page 334).
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The engine oils are matched to the perform-
ance of Mercedes-Benz engines and service
intervals. You should therefore only use engine
oils and oil filters that are approved for vehi-
cles with maintenance systems.