General Coolant Information - Perkins XGA 1600 Series Operation And Maintenance Manual

SEBU8455
Illustration 34
Lubricant Viscosities
Supplemental heat is recommended for cold soaked starts below
the minimum ambient temperature. Supplemental heat may be
required for cold soaked starts that are above the minimum
temperature that is stated, depending on the parasitic load and
other factors. Cold soaked starts occur when the engine has not
been operated for a period of time. This interval will allow the oil to
become more viscous due to cooler ambient temperatures.
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 engines maximum
service life 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 finished oils additive
package, which could lower the performance of the
finished oil. The aftermarket additive could fail to mix
with the finished oil. This failure could produce sludge
in the crankcase. Perkins discourages the use of
aftermarket additives in finished oils.
To achieve the best performance from a Perkins
engine, conform to the following guidelines:
• See the appropriate "Lubricant Viscosities". Refer
to the illustration 34 in order to find the correct oil
viscosity grade for your engine.
•
At the specified interval, service the engine. Use
new oil and install a new oil filter.
•
Perform maintenance at the intervals that are
specified in the Operation and Maintenance
Manual, "Maintenance Interval Schedule".
Oil analysis
Some engines may be equipped with an oil sampling
valve. If oil analysis is required, the oil sampling valve
is used to obtain samples of the engine oil. The oil
analysis will complement the preventive maintenance
program.
The oil analysis is a diagnostic tool that is used to
determine oil performance and component wear
rates. Contamination can be identified and measured
by using oil analysis. The oil analysis includes the
following tests:
•
The Wear Rate Analysis monitors the wear of the
engines metals. The amount of wear metal and
type of wear metal that is in the oil is analyzed. The
g02940936
increase in the rate of engine wear metal in the
oil is as important as the quantity of engine wear
metal in the oil.
•
Tests are conducted in order to detect
contamination of the oil by water, glycol, or fuel.
•
The Oil Condition Analysis determines the loss of
the oils lubricating properties. An infrared analysis
is used to compare the properties of new oil to the
properties of the used oil sample. This analysis
allows technicians to determine the amount of
deterioration of the oil during use. This analysis
also allows technicians to verify the performance
of the oil according to the specification during the
entire oil change interval.
Fluid Recommendations

General Coolant Information

Never add coolant to an overheated engine. Engine
damage could result. Allow the engine to cool first.
If the engine is to be stored in, or shipped to an area
with below freezing temperatures, the cooling system
must be either protected to the lowest outside temper-
ature or drained completely to prevent damage.
Maintenance Section
Refill Capacities
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NOTICE
NOTICE
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