PREVENTIVE MAINTENANCE SCHEDULE PART 8: MAINTENANCE AND SERVICE
– 162 – Y53-6032 (R05/10)
WARNING! Never idle your vehicle for prolonged
periods of time if you sense that exhaust fumes
are entering the cab or sleeper. Investigate the
cause of the fumes and correct it as soon as pos-
sible. If the vehicle must be driven under these
conditions, drive only with the windows slightly
open. Failure to repair the source of the exhaust
fumes may lead to death or personal injury.
NOTES:Keep the engine exhaust system and the
vehicle’s cab/sleeper ventilation system properly
maintained. It is recommended that the vehicle’s
exhaust system and cab/sleeper be inspected
• By a competent technician every 15,000 miles/
24,000 km.
• Whenever a change is noticed in the sound of the
exhaust system.
• Whenever the exhaust system, underbody, cab or
sleeper is damaged.
NOTE: Use only exact replacement components in
exhaust systems. Certain components contain inte-
gral catalytic converters essential for compliance with
EPA emission standards. Using noncompliant com-
ponents as a replacement could violate these stan-
dards and also void the emission system’s warranty.
WARNING! Hot engine oil can be dangerous. You
could be seriously burned. Let the engine oil cool
down before changing it.
Y53-6032.book Page 162 Monday, May 24, 2010 3:37 PM
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