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Schedule “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•
Frequent short trips where the engine does not achieve
full operating temperature (operating temperature de-
fined as 190° F (66° C ) coolant temperature).
•
Extensive engine idling (over 10 minutes per hour of
operation) at ambient temperatures less than 32° F (0°
C).
•
Driving in dusty conditions.
•
Frequent trailer towing.
•
Taxi, police, or delivery service (commercial service).
•
Off-road or desert operation.
•
Extensive operation at high engine speeds (greater
than 2900 rpm) and loads (greater than 70% throttle).
NOTE: If ANY of these apply to you then change your
coolant every 100,000 miles (160 000 km) or 60 months,
whichever comes first and follow schedule “B” of the
⬙Maintenance Schedules⬙ section of this manual.
SCHEDULE “B” 497
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