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Make
KOMATSU
Model
D37EX-21 (Bulldozers)
Engine
D / DT

Application
Recommendation
Capacity (gal)
Data Sheet
Sales Sheet
Engine (D / DT)
Premium
Maxtron DEO SAE 15W-40
(b, c, d)
3.7 / 3.3 (a)
PDS
Mainline
Superlube TMS SAE 15W-40
PDS
Transmission
From Hydraulics
Final Drives (each)
Ultra Premium
Superlube 518 Diesel Engine Oil SAE 30
(e, f)
0.925
PDS
Mainline
Superlube TMS SAE 10W-30
PDS
Coolant
Refer to Technical
7.13
Hydraulics
Premium
Maxtron DEO SAE 10W-30
(g, h, i)
25.6 / 12.4 (a)
PDS
Mainline
Superlube TMS SAE 10W-30
PDS
Grease Fittings
Ultra Premium
Maxtron FS NLGI 2
Premium
Maxtron EP NLGI 2
PDS
Mainline
Blue Gard 500+ NLGI 2
Track Idlers (each)
Ultra Premium
Superlube 518 Diesel Engine Oil SAE 30
0.053
PDS
Mainline
Superlube TMS SAE 10W-30
PDS
Engine (D / DT)
Recommendation:
Premium Maxtron DEO SAE 15W-40
Mainline Superlube TMS SAE 15W-40
(b, c, d)
Capacity 3.7 / 3.3(gal) (a)
Transmission
Recommendation:
From Hydraulics
Final Drives (each)
Recommendation:
Ultra Premium Superlube 518 Diesel Engine Oil SAE 30
Mainline Superlube TMS SAE 10W-30
(e, f)
Capacity 0.925(gal)
Coolant
Recommendation:
Ultra Premium Refer to Technical
Capacity 7.13(gal)
Hydraulics
Recommendation:
Premium Maxtron DEO SAE 10W-30
Mainline Superlube TMS SAE 10W-30
(g, h, i)
Capacity 25.6 / 12.4(gal) (a)
Grease Fittings
Recommendation:
Ultra Premium Maxtron FS NLGI 2
Premium Maxtron EP NLGI 2
Mainline Blue Gard 500+ NLGI 2
Track Idlers (each)
Recommendation:
Ultra Premium Superlube 518 Diesel Engine Oil SAE 30
Mainline Superlube TMS SAE 10W-30
Capacity 0.053(gal)

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
Initial/Refill capacity
b.
5°F to 104°F
c.
Alternative recommendations, -4°F to 104°F: Maxtron DEO SAE 10W-30 / Superlube TMS SAE 10W-30
d.
Alternative recommendations, -4°F to 50°F: Refer to Technical
e.
Alternative recommendations, -4°F to 50°F: Superlube 518 Diesel Engine Oil SAE 10W
f.
Alternative recommendations, 32°F to 104°F: Superlube 518 Diesel Engine Oil SAE 30 / Superlube TMS SAE 10W-30
g.
Alternative recommendations, -4°F to 104°F: Maxtron DEO SAE 10W-30 / Superlube TMS SAE 10W-30
h.
Alternative recommendations, -4°F to 86°F: Superlube 518 Diesel Engine Oil SAE 10W
i.
Alternative recommendations, 5°F to 104°F: Maxtron DEO SAE 15W-40 / Superlube TMS SAE 15W-40

Oil Change Intervals

Engine (D / DT)
Hours Max
250
Final Drives (each)
Hours Max
1000
Coolant
Months Max
12
Hours Max
2000
Hydraulics
Hours Max
2000