Section 10 --- Chassis Information
The Executive 2005
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ENGINE SHUTDOWN
General guidelines for shutting the engine down are fairly simplistic. Allow the engine to idle three
to five minutes after a full load operation. This allows adequate cool down of pistons, cylinders, bear-
ings and turbocharger components. Under normal driving conditions, exiting the highway is general-
ly lighter engine operation and the need for the three to five minutes is not necessary.
Extended Engine Shutdown
When the motorhome has been sitting for extended periods, 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 manufac-
turer’s owner’s manual for guidelines on troubleshooting low oil pressure, or contact a qualified serv-
ice technician. Allow the engine to idle for five minutes before operating under a load.
COOLANT
A fully formulated antifreeze or coolant containing a
precharge of Supplemental Coolant Additives (SCA) is
recommended to significantly simplify coolant system
maintenance. The difference between a fully format-
ted antifreeze and a fully formatted coolant is the per-
centage of water. Both contain balance amounts of
antifreeze, SCA, buffering compounds and a percentage
of good clean quality water. The antifreeze of coolant
must meet ethylene glycol or propylene glyco recom-
mendations.
A good clean quality water in a 50/50 ratio (40 to 60% working range) mixed with fully formatted
antifreeze will provide protection from -34º F to 228º F. The 50/50 mix ratio must be premixed prior to
being put in the system. Placing antifreeze and water in the cooling system is not recommended.
Consult the manufacturer’s OEM for more details.
NOTE:
An over concentration of antifreeze, or the use of high silicate antifreeze, can
cause damage to the coolant system and engine. Antifreeze is essential in every
climate.
WARNING:
Do not continue engine operation when engine temperature rises above 220º F. At 220º.
Engine warning light will illuminate and the engine will begin to de-rate in power
output. Continued operation will result in engine damage.
NOTE:
Consult the engine manufacturer owners guide for more detailed information.
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