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Our Recommendation

Make
CATERPILLAR
Model
621
Engine
DT
Application
Recommendation
Capacity (ltr)
Engine (DT)
  (a, b, c, d, e, f)
33.0
Transmission
VERKOL SAE 30 TO-4 (h)
77.0 / 95.0 (g)
Coolant
 
87.0
Hydraulics
VESTA 10w HD (i, j, k, l, m, n)
81.4
Differential & Final Drives
VERKOL GT-7/85w140 EP (o)
95.0
Steering Gear Sector Housing
MAXIDIESEL SAE 50 (p)
3.3

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.
Without/with retarder
h.
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
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
o.
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
p.
Viscosity options: -30°C to 0°C, 5W-20 (special synthetic oils without VI improvers) or 10W; -20°C to 20°C, 30; -10°C to 40°C, 40; 0°C to 50°C, 50

Oil Change Intervals

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