Paccar PX-9 Operator's Manual - page 65
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MAINTENANCE GUIDELINES
Table - 1 Oil Drain Intervals
Average Vehicle Speed
Miles
Kilometers
Hours
Months
Typical
Applications
Below 5 mph
1,500
2,400
500
6
Shuttle Bus,
Transit Bus
5 to 10 mph
4,000
6,450
500
6
10 to 15 mph
6,000
9,650
500
6
15 to 20 mph
8,500
13,700
500
6
Cement Mixer,
Dump Truck,
Feedlot Truck,
Refuse Truck,
Shuttle Bus,
Transit Bus,
Yard Spotter
20 to 25 mph
10,500
16,900
500
6
25 to 30 mph
12,000
19,300
500
6
Cement Mixer,
Delivery Truck,
Dump Truck,
Emergency
Vehicle, Fire
Truck, School
Bus, Truck
Crane
30 to 40 mph
15,000
24,100
500
6
Emergency
Vehicle, Fire
Truck, Linehaul
Truck, Motor
Coach Bus,
School Bus
Above 40 mph
20,000
32,200
500
12
Recreation
Vehicle
(12/2014)
Y53-1185-1B1
5-11
5