Paccar PX 8, Operator'S Manual, Page: 56 / 94

Maintenance Guidelines
– 50 –
Y53-1030A 12/09 PACCAR
PACCAR bases its oil drain specifications on duty cycle and
oil contamination. This contamination occurs in all engines at
varying rates regardless of design. Maintaining the correct oil and filter change interval is a vital
factor in preserving the integrity of an engine. Filters must be
changed when the oil is changed.
14,500 km [9000 mi], 500 hours, 6 months, or 7571 liters [2000 US
gal] of fuel, whichever occurs first. 24,000 km [15,000 mi], 500 hours, 6 months, or 7571 liters [2000 US
gal] of fuel, whichever occurs first.
Vehicle uses the severe-duty oil drain interval (A). Vehicle uses the normal-duty oil drain interval (B)
Table 1
—
Maximum Oil Drain Intervals
(A) Severe Duty
(If the Vehicle Meets Any of These Conditions)
(B) Normal Duty
(If the Vehicle Meets Both of These Conditions)
Table 2
—
Oil Drain Intervals
Refuse Truck, Mixer, or Dump Truck Kilometers Miles Hours Months
Below 10 mph average 4,850 3,000 500 6
10 to 15 mph average 9,650 6,000 500 6
15 to 20 mph average 13,700 8,500 500 6
20 to 25 mph average 14,500 9,000 500 6
Higher than 25 mph average 19,000 12,000 500 6