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Our Recommendation

Make
CATERPILLAR
Model
621F
Engine
DT
Application
Recommendation
Capacity (ltr)
Engine (DT) (Caterpillar 3406B TA)
  (a, b, c, d, e, f)
36.0
Transmission
VERKOL SAE 30 TO-4 (g)
72.0
Differential
VERKOL GT-7/85w140 EP
163
Final Drives (each)
VERKOL GT-7/85w140 EP (h)
19.0
Coolant
 
83.0
Hydraulics
VESTA 10w HD (i, j, k, l, m, n)
140
Auger Drive Gear
VERKOL GT-7/85w140 EP
19.0
Auger Lower Bearings
 
2.0
Elevator Lower Rollers
 
Scraper Wheels (each)
VERKOL SAE 50 TO-4
Wheel Coolant (each)
 
45.0

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
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
b.
Alternative recommendations, -40°C to 10°C: EO CAT ECF-1 0W-20
c.
Alternative recommendations, -30°C to 40°C: EO CAT ECF-1 5W-40
d.
Alternative recommendations, -30°C to 30°C: EO CAT ECF-1 5W-30
e.
Alternative recommendations, -20°C to 40°C: EO CAT ECF-1 10W-30
f.
Alternative recommendations, -15°C to 50°C: EO CAT ECF-1 15W-40
g.
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
h.
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
i.
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
j.
-20°C to 40°C
k.
Alternative recommendations, -20°C to 40°C: VERKOPLUS 10w30 MSA
l.
Alternative recommendations, -15°C to 50°C: TF CAT TDTO TMS
m.
Alternative recommendations, -5°C to 45°C: HY CAT HYDO 20W
n.
Alternative recommendations, 0°C to 50°C: HY CAT HYDO 30

Oil Change Intervals

Engine (DT) (Caterpillar 3406B TA)
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
Auger Drive Gear
Months Max
12
Hours Max
2000
Auger Lower Bearings
Months Max
12
Hours Max
2000