30 SEBU8191-01
Maintenance Section
Refill Capacities
Table 10
Engine Oil Viscosity
EMA LRG-1
API CH-4
Viscosity Grade
Ambient Starting
Temperature
SAE 10W30
Temperatures below
−15 °C (5 °F)
SAE 15W40
−15 °C (5 °F) to
0°C(32.°F)
SAE 15W40
0°C(32.°F)to
32 °C (89.5
°F)
SAE 15W40
Temperatures above
32 °C (89.5 °F)
Synthetic Base Stock Oils
Syntheti
c base oils are acceptable for use in
these engines if these oils meet the performance
requirements that are specified for the engine.
Synthetic base oils generally perform better than
conventional oils in the following two areas:
•
Synthetic base oils have improved flow at low
temperatures especially in arctic conditions.
•
Synthetic base oils have improved oxidation
stability especially at high operating temperatures.
Some synthetic base oils have performance
characteristics that enhance the service life of the
oil. P
erkins does not recommend the automatic
extending of the oil change intervals for any type of
oil.
Re-refined Base Stock Oils
Re-r
efined base stock oils are acceptable for
use in Perkins engines if these oils meet the
performance requirements that are specified by
Per
kins. Re-refined base stock oils can be used
exclusively in finished oil or in a combination with
new base stock oils. The US military specifications
and
the specifications of other heavy equipment
manufacturers also allow the use of re-refined base
stock oils that meet the same criteria.
The process that is u sed to make re-refined base
stock oil should adequately remove all wear metals
th
at are in the used oil and all the additives that
are in the used oil. The process that is used to
make re-refined base stock oil generally involves the
p
rocess of vacuum distillation and hydrotreating the
used oil. Filtering is adequate for the production of
high quality, re-refined base stock oil.
Lubricants for
Cold Weather
When an engine is started and an engine is operated
in ambient tem
peratures below −20 °C (−4°F),use
multigrade oils that are capable of flowinginlow
temperatures.
These oils have lubricant viscosity grades of SAE
10W or SAE 15W.
When an engine is started and operated in ambient
temperatures below −30 °C (−22 °F), use a synthetic
base stock m
ultigrade oil with an 0W viscosity grade
orwitha5Wviscositygrade.Useanoilwithapour
point that is lower than −50 °C (−58 °F).
The number of acceptable lubricants is limited
in cold-weather conditions. Perkins recommends
the follow
ing lubricants for use in cold-weather
conditions:
First Cho
ice – Use oi l with an EMA DHD-1
Recommended Guideline. Use a CH-4 oil that has
an API license. The oil should be either SAE 0W20,
SAE 0W30,
SAE 0W40, SAE 5W30, or SAE 5W40
lubricant viscosity grade.
Second C
hoice – Use an oil that has a CH-4
additive package. Although the oil has not been
tested for the requirements of the API license, the oil
must be e
ither SAE 0W20, SAE 0W30, SAE 0W40,
SAE 5W30, or SAE 5W40.
NOTICE
Shortened engine service life could result if second
choice oils are used.
Aftermarket Oil Additives
Perkins does not recommend the use of aftermarket
additives in oil. It is not necessary to use aftermarket
additives in order to achieve the maximum service life
of the engine or rated performance. Fully formulated,
finished oils consist of base oils and of commercial
additive packages. These additive packages are
blended into the base oils at precise percentages in
order to help provide finished oils with performance
characteristics that meet industry standards.
There are no industry standard tests that evaluate
the performance or the compatibility of aftermarket
additives in finished oil. Aftermarket additives may
not be compatible with the additive package of the
finished oil, which could lower the performance of
the finished oil. The aftermarket additive could fail to
mix with the finished oil. This could produce sludge
in the crankcase. Perkins discourages the use of
aftermarket additives in finished oils.
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