Schedule “B”
Follow schedule “B” if you usually operate your vehicle
under one or more of the following conditions.
•Day or night temperatures are below 32° F (0° C).
•Stop and go driving.
•Extensive engine idling.
•Driving in dusty conditions.
•Short trips of less than 10 miles (16 km).
•More than 50% of your driving is at sustained high
speeds during hot weather, above 90° F (32° C).
•Trailer towing.
•Snowplowing.
•Heavy Loading.
•Taxi, police, or delivery service (commercial service).
•Off-road or desert operation.
•If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule “B” of the
Maintenance Schedulessection of this manual.
NOTE:IfANYof these apply to you then flush and
replace your engine coolant every 102,000 miles (170 000
km) or 60 months, whichever comes first and follow
schedule “B” of theMaintenance Schedulessection of
this manual.
NOTE:If none of these apply to you, then change your
engine oil at every interval shown on scheduleAof the
Maintenance Schedulessection of this manual.
SCHEDULE “B” 521
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