Note:
After initial coolant flush and fill at 60,000 miles (96,000 km) or
2,400 engine hours, flush and fill every 45,000 miles (72,000 km) or
1,800 engine hours thereafter.
Frequent low speed operation, consistent heavy traffic less than 25 mph
(40 km/h) and/or long rush hour traffic
As required
– Change engine oil and filter as indicated by message
center and perform services listed in the scheduled
maintenance chart
Every 15,000 miles (24,000 km),
6 months, 600 engine hours or as
indicated by message center
– Replace engine- and frame-mounted fuel filters
Every 15,000 miles (24,000 km) or
800 engine hours
– Inspect concentration (freeze-point protection) and
additive strength (corrosion inhibitor); add engine coolant
additive, if required
Every 60,000 miles (96,000 km)
– Change transfer case fluid (4WD vehicles)
Every 60,000 miles (96,000 km) or
2,400 engine hours
– Flush and refill engine coolant; do not add engine
coolant additive
Perform the services noted in the preceding table at the specified
time/mileage (km) period either within 3,000 miles (4,800 km) of the
OIL CHANGE REQUIRED message appearing in the message center or
when the time/mileage (km) reading indicates service is due.
Example #1:
The OIL CHANGE REQUIRED message comes on at
19,751 miles (31,786 km); perform the 22,500 mile (36,000 km) fuel
filter replacement.
Example #2:
The OIL CHANGE REQUIRED message has
not
come on
but the odometer reads 22,500 miles (36,000 km); perform the fuel filter
replacement. (i.e., Intelligent Oil Life Monitor™ was reset at 15,000 miles
[24,000 km].)
Note:
When adding coolant additive, do not exceed the specified
maximum of 48 fl. oz. (1.4L). Operating the engine with excessive
coolant additive may cause overheating which could lead to severe
permanent engine damage.
Note:
After initial coolant flush and fill at 60,000 miles (96,000 km) or
2,400 engine hours, flush and fill every 45,000 miles (72,000 km) or
1,800 engine hours thereafter.
Scheduled Maintenance Guide
83
2011 Diesel
(eco)
Supplement, 5th Printing
USA
(fus)
