Paccar PX-9 Operator's Manual - page 82
MAINTENANCE SPECIFICATIONS
Inspection of the Engine Oil
Level
NOTE
It takes approximately 15 minutes
for all the oil to run into the sump
when the engine is ‘warm.’ If the
level is checked immediately after
switching off the engine, the dip-
stick will show a low oil level.
After the engine is shut off it will take
at least 15 minutes for all the engine
oil to return to the sump. If the level is
checked immediately after switching
off the engine, the dipstick will show
a low oil level.
1.
Engine coolant should be at or
above the operating temperature
of 180°F (82°C).
2.
Make sure that the vehicle
suspension is sitting flat, both
lengthwise and crosswise. Check
this carefully on a vehicle with air
suspension.
3.
Twist the dipstick handle to unlock
it, then pull the dipstick out of the
holder.
4.
Wipe the dipstick clean with a
lint-free cloth.
5.
Reinsert the dipstick into the
holder.
6.
Remove the dipstick from the
holder and check the oil level. The
oil level should always be between
the two marks on the dipstick.
7.
Reinstall the dipstick and twist to
lock it in place.
NOTE
On the engine oil dipstick, the dif-
ference between the low oil level
mark (2) and high oil level mark (1)
is two US quarts (1.9 liters).
1. High oil level
2. Low oil level
5-28
Y53-1185-1B1
(12/2014)
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