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Our Recommendation

Make
CATERPILLAR
Model
637D
Engine
DT
Application
Recommendation
Capacity (ltr)
Engine (DT)
  (b, c, d, e, f, g)
45.0 / 27.0 (a)
Transmission
VERKOL SAE 30 TO-4 (i)
114 / 133 (h)
Differential
VERKOL GT-7/85w140 EP
136 / 17.0 (a)
Final Drives (each)
VERKOL GT-7/85w140 EP (j)
42.0 / 45.0 (a)
Coolant
 
140 / 76.0 (a)
Hydraulics
VESTA 10w HD (k, l, m, n, o, p)
170
Scraper Transmission
VERKOL SAE 30 TO-4 (i)
72.0 / 95.0 (h)
Steering Gear Sector Housing
VERKOL SAE 30 TO-4 (q, r)
0.9
Wheel Coolant (each)
  (s)
76.0

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
Tractor/scraper
b.
Caterpillar list API CH-4 and API CI-4 as preferred oils and API CG-4 as an acceptable alternative. These oils must meet Caterpillar's ECF-1 specification to avoid reduced engine life. API CF-4 should not be used in Caterpillar diesel engines
c.
-15°C to 50°C
d.
Alternative recommendations, -40°C to 10°C: EO CAT ECF-1 0W-20
e.
Alternative recommendations, -30°C to 40°C: EO CAT ECF-1 5W-40
f.
Alternative recommendations, -30°C to 30°C: EO CAT ECF-1 5W-30
g.
Alternative recommendations, -20°C to 40°C: EO CAT ECF-1 10W-30
h.
Without/with retarder
i.
Transmission oil viscosity options: -30°C to 10°C, 5W-20 (special synthetic oils without VI improvers); -20°C to 10°C, 10W; 0°C to 35°C, 30; 5°C to 45°C, 40; 10°C to 50°C, 50
j.
Final drives, differential and wheel bearing oil viscosity options: -30°C to 40°C, 75W-90 (special synthetic oils without VI improvers); -20°C to 0°C, 80W; -20°C to 40°C, 80W-90, -10°C to 50°C, 85W-140; 0°C to 40°C, 90
k.
Hydraulic oil viscosity options: -40°C to 40°C, 0W-20 or 0W-30; -30°C to 40°C, 5W-40; -20°C to 40°C, 10W or 10W-30; 10°C to 50°C, 30; -15°C to 50°C, 15W-40
l.
-20°C to 40°C
m.
Alternative recommendations, -20°C to 40°C: VERKOPLUS 10w30 MSA
n.
Alternative recommendations, -15°C to 50°C: TF CAT TDTO TMS
o.
Alternative recommendations, -5°C to 45°C: HY CAT HYDO 20W
p.
Alternative recommendations, 0°C to 50°C: HY CAT HYDO 30
q.
-20°C to 25°C
r.
Alternative recommendations, -30°C to 0°C: TF CAT TO4 5W-20; VERKOL SAE 10w TO-4
s.
Mix ratio, 20%

Oil Change Intervals

Engine (DT)
Months Max
3
Hours Max
250
Transmission
Months Max
6
Hours Max
1000
Differential
Months Max
12
Hours Max
2000
Final Drives (each)
Months Max
12
Hours Max
2000
Coolant
Months Max
24
Hours Max
2000
Hydraulics
Months Max
18
Hours Max
3000
Scraper Transmission
Hours Max
1000
Steering Gear Sector Housing
Hours Max
1000