Engine oil SAE classification
Viscosity indicates the flow characteristics of a fluid. If an engine oil has a high viscosity, thismeans that it is thick; a low viscosity means
that it is thin.
Depending on the respective outside temper- atures, select an engine oil according to SAE
classification (viscosity). The table displays
the SAE classification to be used. The low
temperature characteristics of engine oils
can noticeably deteriorate during operation,
e.g. from aging, soot and fuel accretion. For
this reason, regular oil changes using an
approved engine oil from the suitable SAE
classification are urgently recommended.
Additives !
Do not use any additives in the engine oil.
This could damage the engine.
Miscibility of engine oils !
Mixing oils reduces the benefits of using
high grade engine oils.
We recommend that you only add engine oil of
the same quality grade and SAE class as used when the engine oil was last changed.
If, in exceptional cases, oil of the type in the
engine is not available, top up using another
approved mineral or synthetic engine oil.
If the quality grade is not available for diesel
engines, you may also add engine oils meet-
ing the requirements in MB Sheet Number
228.5, 229.3 or 229.5. The quantity to be added is then limited to a maximum of 1 qt
(1 l).
Engine oils are differentiated according to:
R engine oil brand
R quality grade (sheet number)
R SAE class (viscosity)
Subsequently have the engine oil changed at
the earliest possible opportunity.
Interval for oil change The on-board computer automatically shows
the date for the next oil change as an event
message in the display.
Only by using engine oil with a particularly
high quality grade, e.g. according to Sheet
Number 228.51 of the Mercedes-Benz Spec-
ifications for Service Products, can the maxi-
mum interval for oil change be achieved.
We recommend having the oil changed at a
qualified specialist workshop.
Engine oil for diesel engines Product name/number
See the Maintenance Booklet.
MB Sheet Number 228.51, 229.31, 229.51
Capacities
!
Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off.
Oil change including oil filter Vehicles Engine oil
4-cylinder Approximately
3 US gal (11.5 l) 6-cylinder Approximately
3.3 US gal (12.5 l) Service products and capacities
323Technical data Z
