Holiday Trip 2012, Owner'S Manual

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2012 Trip
Extended Engine Shutdown
When the motorhome is sitting for 30 days
or more, verify all the fluid levels are correct.
Follow the normal starting procedures. If the
oil pressure gauge does not register within
15 seconds, shut off the engine immediately
to avoid damage. Consult the engine OEM
manual for guidelines on troubleshooting low
oil pressure, or contact a qualified service
technician. Allow the engine to idle for five
minutes before operating under a load.
coolant SyStem
The coolant system is filled with a fully
formulated extended life coolant. Coolant that
is fully formulated contains balanced amounts
of antifreeze, Supplemental Coolant Additive
(SCA), buffering compounds, and clean,
quality water.
Antifreeze that is not fully formulated must
be mixed with clean, quality water (distilled
water preferred) in a 50/50 ratio (40 to 60%
working range). This ratio will provide
protection from -34º F. to 228º F. Antifreeze
must be of low silicate content and must meet
ASTM D6210. The 50/50 ratio of antifreeze
and clean quality water plus SCA must be
premixed prior to being put in the cooling
system. Placing antifreeze and then water
in the cooling system is not recommended.
Refer to the OEM Engine Manual for more
information.
WARNING:
Do not continue engine operation
if engine temperature rises above
220º F. At approximately 228º F, the
Check Engine (Warning Triangle)
light on the dash will illuminate and
the engine protection software will
log an engine diagnostic trouble code.
Turn the engine off as soon as possible
as continued operation will result in
severe engine damage. Correct the
cause of the overheat condition before
resuming operation.
CAUTION:
An over-concentration of antifreeze
will reduce freeze protection. Use of
high silicate antifreeze can damage
the cooling system and engine. SCA
is required in the cooling system to
inhibit cylinder liner pitting as a result
of cavitation erosion.
Good-Quality Water:
Good quality water is important for cooling
system performance. Excessive levels of
calcium and magnesium contribute to scaling
problems. Excessive levels of chlorides and
sulfates cause cooling system corrosion.
Testing the Coolant:
A refractometer must be used to accurately
measure the freezing point of the coolant.
Do not use a floating ball hydrometer. Using
floating ball hydrometers can give an incorrect
reading.
Coolant System Sealing Additives:
Do not use sealing additives in the cooling
system. The use of sealing additives will:
Build up in coolant low-flow areas.
Plug the radiator and oil cooler.
Possibly damage the water pump seal.
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Cooling System Soluble Oils:
Do not use soluble oils in the cooling
system. The use of soluble oils will:
Corrode brass and copper.
Damage heat transfer surfaces.
Damage seals and hoses.
Check the coolant level before each trip,
refueling, and when checking the oil level.
Coolant freeze point is checked at every oil
change interval or as specified by the engine
manufacturer. Coolant drain and flush intervals
are specified by the engine manufacturer.
Refer to the OEM engine manual for more
information on service maintenance intervals.
Coolant Types:
Use (preferred) fully formulated
extended life coolant that meets ASTM
D-6210/D-6211.
Use a low-silicate antifreeze that meets
ASTM 6210 standard.
INFORMATION:
For detailed information on engine
coolants for refer to OEM engine
manual for coolant requirements.
Engine Coolant Reservoir:
The engine coolant reservoir is connected
to the radiator by a hose. Coolant heats and
expands as the motorhome is driven. Coolant
displaced by expansion overflows from the
radiator into the reservoir. Coolant contracts as
it cools and is drawn back in the radiator by a
vacuum. Thus, the radiator is filled to capacity
with coolant at all times to increase cooling
efficiency.
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