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Make
JOHN DEERE
Model
644B (4WD Loaders)
Engine
D / DT

Application
Recommendation
Capacity (gal)
Data Sheet
Sales Sheet
Engine (D / DT)
Premium
Maxtron DEO SAE 15W-40
5.55
PDS
Mainline
Superlube TMS SAE 15W-40
PDS
Transmission
Ultra Premium
Maxtron THF +
9.77
PDS
Premium
Qwiklift HTB Low Vis
PDS
Coolant
Refer to Technical
12.4
Hydraulics
Ultra Premium
Maxtron THF +
(a, b)
17.7
PDS
Premium
Qwiklift HTB
PDS
Differentials (each)
Ultra Premium
Maxtron THF +
6.34
PDS
Premium
Qwiklift HTB
PDS
Engine (D / DT)
Recommendation:
Premium Maxtron DEO SAE 15W-40
Mainline Superlube TMS SAE 15W-40
Capacity 5.55(gal)
Transmission
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB Low Vis
Capacity 9.77(gal)
Coolant
Recommendation:
Ultra Premium Refer to Technical
Capacity 12.4(gal)
Hydraulics
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
(a, b)
Capacity 17.7(gal)
Differentials (each)
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
Capacity 6.34(gal)

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
Alternative recommendations, -40°F to 68°F: Maxtron THF + / Qwiklift HTB Low Vis
b.
Alternative recommendations, -13°F to 122°F: Maxtron THF + / Qwiklift HTB

Oil Change Intervals

Engine (D / DT)
Hours Max
250
Transmission
Hours Max
2000
Coolant
Months Max
24
Hours Max
2000
Hydraulics
Hours Max
2000
Differentials (each)
Hours Max
2000