CHASSIS INFORMATION — 10
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20 08 CONTESSA
Aqua-Hot (Optional) Engine Preheat:
The diesel burner inside the optional Aqua-
Hot heats an internal engine coolant loop. When
the Aqua-Hot Engine Preheat switch is turned
on, an engine coolant pump inside the Aqua-Hot
circulates heated coolant through the engine.
The time it takes for the Aqua-Hot to preheat
the engine depends on ambient temperature.
Allow at least three hours of preheating before
attempting to start the engine.
To Use the Engine Preheat System:
Press the Aqua-Hot switch at the kitchen
to turn the system on.
Turn the Aqua-Hot Engine Preheat
switch at the dash to the ON position.
This activates the engine pump inside
the Aqua-Hot.
Tips:
1. When operating below 32º F., the
Aqua-Hot and/or block heater preheat
can enhance engine starting by easing
cranking and helping to prevent
engine misre and white smoke during
starting.
2. Always follow the recommended oil,
fuel, and coolant specications as
outlined in the OEM Engine Manual.
Proper oil viscosity and coolant
concentration eases engine starting and
helps to avoid engine damage.
3. Allow the engine to idle until it
sufciently warms for operation. Utilize
the fast idle feature to quicken the
process. Wait to operate the motorhome
for at least three minutes or until the
coolant temperature begins to rise.
4. Check the air inlet and lter daily, or
as necessary when driving in snow
conditions.
5. The demand on batteries increase
during winter; check and service the
batteries frequently to help ensure
trouble-free starts.
6. Start out slowly with the motorhome
to allow the transmission and axle
lubricants time to circulate and warm
before putting them under full load.
WARNING:
Use of ether starting fluids may cause an
explosion upon grid heater activation.
ENGINE OIL
Caterpillar Engine Requirements:
Following the maintenance guidelines in the
Caterpillar Operation & Maintenance Manual
recommendations for the engine will help to
extend engine life and improve performance,
resulting in cost efcient operations. A good
maintenance schedule begins with a daily
awareness of the engine and its various systems.
A high grade 15W-40 multi-viscosity heavy
duty lubricating oil meeting Caterpillar
specication CAT ECF-3, and American
Petroleum Institute (API) specication CJ-4
is required. A critical factor in maintaining
engine performance and durability is the use of
high grade multigrade lubricating oil and strict
adherence to the maintenance service intervals.
NOTE:
Oils that meet the API CJ-4 oil category
requirements are Cat ECF-3 compliant.
Shortened drain intervals may be required
as determined by a close monitoring of
the lubricating oil condition by means of
an oil analysis program. Oil analysis is a
diagnostic tool to determine oil performance
and component wear rates. Oil analysis is the
best indicator for determining what is going
on inside the engine. Consult a Caterpillar
dealer for more information about Oil
Analysis programs.
Proper viscosity grade of engine lubricating
oils should be determined by ambient temperate
during start-up and normal engine operations.
Synthetic oils with an API category III
specication are recommended for extreme cold
temperatures only. Low viscosity oils used for
winter operations will aid in starting. Synthetic
oils, or oil with adequate low temperature
properties used for Arctic operations where the
engine cannot be kept warm when shut down,
will aid in starting. The use of synthetic oils
should not be used to extend drain intervals.
Extended oil change intervals can decrease
engine life and possibly affect the engine
warranty.
Located in Galley
040403c
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