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Our Recommendation

Make
CATERPILLAR
Model
785C (Rigid Dump Trucks)
Engine
DT
Application
Recommendation
Capacity (ltr)
Engine (DT)
  (a, b, c, d, e)
204
Transmission
VERKOL SAE 50 TO-4 (g, h, i, j, k)
248 / 83.0 (f)
Differentials
VERKOL SAE 50 TO-4 (l, m)
379
Final Drives (each)
VERKOL SAE 50 TO-4 (n, o)
74.0
Coolant
 
390
Front Wheel Bearings
VERKOL SAE 50 TO-4 (p, q)
14.0
Hoist & Brake System
VERKOL SAE 10w TO-4 (r, s, t)
641 / 421 (f)
Steering Hydraulics
VERKOL SAE 10w TO-4 (u, v, w, x, y, z)
117 / 91.0 (f)

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.
-15°C to 50°C
c.
Alternative recommendations, -40°C to 30°C: EO CAT ECF-1 0W-30
d.
Alternative recommendations, -30°C to 40°C: EO CAT ECF-1 5W-40
e.
Alternative recommendations, -20°C to 40°C: EO CAT ECF-1 10W-30
f.
System / Reservoir
g.
10°C to 50°C
h.
Alternative recommendations, -40°C to 20°C: TF CAT TO4 0W-30
i.
Alternative recommendations, -30°C to 20°C: TF CAT TO4 5W-30
j.
Alternative recommendations, -20°C to 10°C: VERKOL SAE 10w TO-4
k.
Alternative recommendations, 0°C to 35°C: VERKOL SAE 30 TO-4
l.
<32°C
m.
Alternative recommendations, <50°C: TF CAT TO4 60
n.
<32°C
o.
Alternative recommendations, <50°C: TF CAT TO4 60
p.
<32°C
q.
Alternative recommendations, <50°C: TF CAT TO4 60
r.
-20°C to 50°C
s.
Alternative recommendations, -40°C to 40°C: TF CAT TDTOS 0W-20
t.
Alternative recommendations, -20°C to 50°C: TF CAT TDTO 10W
u.
-20°C to 40°C
v.
Alternative recommendations, -40°C to 40°C: TF CAT TO4 0W-30
w.
Alternative recommendations, -30°C to 40°C: TF CAT TO4 5W-40
x.
Alternative recommendations, -20°C to 40°C: TF CAT TO4 10W-30
y.
Alternative recommendations, -15°C to 50°C: TF CAT TO4 15W-40
z.
Alternative recommendations, 10°C to 50°C: VERKOL SAE 30 TO-4

Oil Change Intervals

Engine (DT)
Hours Max
250
Transmission
Hours Max
1000
Coolant
Months Max
24
Hours Max
2000
Hoist & Brake System
Hours Max
2000
Steering Hydraulics
Hours Max
1000