Engine Oil and Filter Change Intervals
Vehicle Application
Change Interval
Oil Drain and Filter Replacement Interval
Normal Duty (Line Haul) - less than 20%
idle time
75,000 miles (120,000 km)
2,250 hours or 12 months
Normal Duty (Line Haul) - more than 20%
idle time
50,000 miles (80,000 km)
1,500 hours or 12 months
Severe Duty (Vocational*)
30,000 miles (48,000 km)
800 hours, or 12 months
* Vocational vehicle applications include: Agriculture, Concrete Mixers, Construction, Crane, Dumps, Emergency/Fire, Heavy
Equipment, Loggers, Mining, Oil Field, Snowplows, and Wrecker.
NOTE
If B6-B20 biodiesel fuel is used, the oil
and filter must be changed every
40,000 mi (64,000 km) for line haul ap-
plications; every 20,000 mi (32,000
km) for severe duty, or every six
months.
Cooling System
Maintenance
The cooling system in your vehicle was
factory filled with extended life coolant that
meets or exceeds all ASTM D6210 and
Caterpillar EC-1 requirements. PACCAR
ENGINE MAINTENANCE - Cooling System Maintenance
Y53-1166-1M1 (10/2020)
59
2
Summary of Contents for MX-11
Page 1: ...Operator s Manual Operator s Manual 2021 Model Year Warranty 2021 Emissions ...
Page 2: ......
Page 3: ...Engine Operation 1 Engine Maintenance 2 Engine Warranty 3 Contents ...
Page 4: ......
Page 103: ...ENGINE MAINTENANCE Engine Identification Y53 1166 1M1 10 2020 101 2 ...
Page 115: ...ENGINE WARRANTY United States and Canada Engine Warranty Y53 1166 1M1 10 2020 113 3 ...
Page 120: ......