Paccar MX-11, Operator'S Manual

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Torque the drain plug to its stop.
Oil Drain Plug Detent
1
1. Detent
NOTE
Care should be taken to avoid over-
torquing the drain plug.
Replace the drain plug if:
• The plug is leaking
• The O-ring is missing
• The plug/O-ring assembly is
damaged
• The retention detent cannot be felt
during installation
Engine Oil Filter
Oil Filter Module
1
2
3
1. Centrifugal Oil Filter
2. Full-Flow Oil Filter
3. Oil Cooler Module
Your engine is equipped with a full-flow oil
filter and may also be equipped with a
centrifugal bypass oil filter. Both filters are
designed to capture contaminants and
remove deposits from the oil to prolong the
life of internal moving components.
Always use quality engine lubricating oils in
conjunction with the appropriate oil drain
and filter change intervals. Refer to the
“Preventative Maintenance Schedule” for
the recommended oil and filter change
service interval.
CAUTION
Use of non-genuine PACCAR oil filters
can cause severe engine damage.
Oil Filter Removal Preparation
CAUTION
Before beginning to remove and/or
disconnect any components, wait at
least 5 minutes after the key switch is
turned OFF for the aftertreatment DEF
dosing system to purge the DEF from
the system. The DEF system purges
to prevent damage from freezing. Fail-
ure to comply may result in equipment
or property damage.
ENGINE MAINTENANCE - Maintenance Procedures
Y53-1166-1M1 (10/2020) 69
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