Mack M359 - Engine Oil

MAINTENANCE, LUBRICATION AND SERVICE
ENGINE OIL
General
Keep the engine oil at the proper level
and change it at the recommended
intervals. Always replace the oil lters at
the same time as when the oil is
changed.
Oil Quality
Engine oils that meet or exceed the
standards given by American Petroleum
Institute (API) for the oil classications
are listed in this manual. Only oils
licensed to carry the API symbol should
be used. Lubricants meeting API
standards have provided maximum
engine life when used together with the
recommended oil and oil lter change
intervals.
EO-O Premium Plus (or VDS-4) diesel
engine oil is mandatory for use in all
current emission compliant engines.
Chassis equipped with a Diesel
Particulate Filter (DPF) require the use of
Ultra Low Sulfur Diesel (ULSD) fuel. EO-
O Premium Plus oils exceed the API
service category CJ-4.
CAUTION
DO NOT add extra oil additives. Additives
such as break-in oils, top oils, graphitizers
and friction-reducing liquids are not
necessary and can harm the engine.
Oil Change Intervals
The length of time an engine can
operate before an oil change depends
on the quality of oil used, the type of fuel
used, fuel consumption, engine oil
consumption, vehicle application, level
of dust in the air and fuel consumption.
The change intervals given in this
manual are
maximum intervals. If the
vehicle is operating in heavy-duty, dusty
or off-road conditions more frequent oil
changes should be scheduled.
For additional information about oil
change intervals and approved oils,
contact a certied dealer.
NOTE
Oil lters should always be changed when
changing oil.
Oil Filters
There are three lters on the engine, one
of which is a bypass lter. This should
be changed at the same time as the full-
ow lter(s).
CAUTION
Oil lters are designed to provide the
proper level of ltration and protection for
the engines. Filters that do not meet the
same stringent requirements may void
engine warranty.
1 Spin-Off Oil Filters
Synthetic Lubrication
Synthetic oils are offered by some oil
suppliers as an alternative to the
traditional, petroleum based oils for
engines. These oils may be used in
Mack engines, provided they meet the
quality levels specied on the previous
pages.
The use of synthetic oils does not permit
the extension of the recommended oil
change intervals. It is the contamination
rate, i.e., soot, and the depletion of
additives, rather than base oil quality
that determines the useful engine oil life
and therefore the oil change intervals.
Oil Viscosity
The viscosity grade denes the
thickness of the oil. The oil must be thin
enough at low temperatures for easy
cold starts and thick enough to protect
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