Monaco Executive 2005 - Engine Oil

Section 10 --- Chassis Information
The Executive 2005
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4. Check the air inlet and filter 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:
Do not use ether cold starting aids to start the engine as damage may occur.
ENGINE OIL
Cummins Engine Requirements:
The maintenance guidelines in the Cummins
Operation & Maintenance Manual are the rec-
ommendations for the engine to extend the
engine life and improve performance, result-
ing in cost efficient operations. A good mainte-
nance schedule begins with a daily awareness
of the engine and its various systems.
A high grade 15W-40 multiviscosity heavy
duty lubricating oil meeting Cummins
Engineering Specification CES 20071 or CES
20076, American Petroleum Institute (API)
specification CH-4 which can be used as an
alternative to CES 20071 is recommended.
Lubricating oils meeting API CG-4 specifica-
tions may be used at a reduced drain interval.
The engine uses Pennzoil 15W-40 heavy duty
engine lubricating oil that meets Cummins specifications. A critical factor in maintaining engine per-
formance and durability is the use of high grade multigrade lubricating oil and strict adherence to the
maintenance service intervals.
A straight weight or monograde lubricating oil is not recommended. Shortened drain intervals may
be required as determined by a close monitoring of the lubricating oil condition by means of an oil
sampling program. The use of oil analysis to extend drain interval is not recommended. There are
numerous variables which is the basis of the recommendation.
Synthetic oils API category III specifications 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.
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