Our Recommendation

Make
PETERBILT
Model
Model 320 (CNG) (EPA 2010)
Engine
CNG
Year
2010-
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Application
Recommendation
Capacity (ltr)
Engine (CNG) (Cummins ISL-G, 186 - 239 kW)
 
27.6
Transmission (Fuller)
 
Transmission (Allison)
 
Differential (Dana/Spicer single/tandem/tridem axle)
1
VERKOL GT-8/80w90 EP (a)
2
SALDUBA 80w90 LS
3
VERKOL GT-7/80w90 EP
Differential (Meritor)
1
VERKOL GT-8/80w90 EP (b)
2
SALDUBA 80w90 LS
3
VERKOL GT-7/80w90 EP
Coolant (Cummins ISL-9)
 
Coolant (Cummins ISL-G)
  (c)
12.4
Steering Gear
VESTA TD 3
Grease Points
QUAKERTEK ASTURUS 2
Hubs (LMS)
MAXIDIESEL SAE 50 (d)
0.3
Hubs (Non LMS)
MAXIDIESEL SAE 50
0.3 - 0.4

Lubricant / Capacity Notes

a.
Alternative recommendations: GO DNA 429
b.
Alternative recommendations: GO MTR 076M 75W-140
c.
Mix ratio, 50%
d.
Alternative recommendations: GO DNA 256 75W-90

General Notes

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Oil Change Intervals

Engine (CNG) (Cummins ISL-G, 186 - 239 kW)
Km Max
24000
Months Max
6
Hours Max
500
Transmission (Fuller)
Km Max
800000
Transmission (Allison)
Km Max
800000
Differential (Dana/Spicer single/tandem/tridem axle)
Km Max
192000
Months Max
12
Differential (Meritor)
Km Min
192000
Km Max
384000
Months Max
24
Coolant (Cummins ISL-9)
Km Max
128000
Months Max
24
Hours Max
2000
Coolant (Cummins ISL-G)
Km Max
96000
Months Max
24
Hours Max
2000
Steering Gear
Km Max
384000
Months Max
24
Hubs (LMS)
Km Max
560000