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Make
CATERPILLAR
Model
420E (Backhoe Loaders)
Engine
D / DT

Application
Recommendation
Capacity (ltr)
Engine (D / DT)
1st choice
Refer To Technical (a, b)
7.2
2nd choice
Gulf Supreme Duty LE 15W-40
Transmission (Direct Drive)
Gulf HT Fluid TO-4 30 (c)
18.5
Hydraulics
Refer To Technical (d, e)
40.0
Coolant
Refer to Technical
23.1 - 25.3
Brake Fluid
1st choice
Gulf Super Duty CF 10W
(f)
2nd choice
Gulf HT Fluid TO-4 10W
Front Powered Axle
1st choice
Refer To Technical (g)
11.0 / 14.0
2nd choice
Gulf HT Fluid TO-4 30
Front Powered Axle Final Drives (each)
1st choice
Refer To Technical (h)
0.7
2nd choice
Gulf HT Fluid TO-4 30
Rear Axle (AWS)
1st choice
Refer To Technical (i)
16.0
2nd choice
Gulf HT Fluid TO-4 30
Rear Axle (standard)
1st choice
Refer To Technical (i)
16.5
2nd choice
Gulf HT Fluid TO-4 30
Rear Reduction Hubs (each)
1st choice
Refer To Technical
1.7
2nd choice
Gulf HT Fluid TO-4 30
Transmission (Power Shift)
Gulf HT Fluid TO-4 30 (j)
19.0

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, 0W-20; -40°C to 30°C, 0W-30; -40°C to 40°C, 0W-40; -30°C to 30°C, 5W-30; -30°C to 50°C, 5W-40; -18°C to 40°C, 10W-30; -18°C to 50°C, 10W-40; -10°C to 50°C, 15W-40
c.
Alternative recommendations: 10°C to 50°C, Gulf HT Fluid TO-4 50; -20°C to 10°C, Gulf HT Fluid TO-4 10W; 0°C to 35°C, Refer To Technical / Gulf HT Fluid TO-4 30; -15°C to 43°C, Refer To Technical
d.
Caterpillar list API CG-4, API CF and CAT TO-4 as alternative specifications. These oils must have a minimum zinc content of 900 ppm
e.
Alternative recommendations: -5°C to 45°C, HY CAT HYDO 20W; 0°C to 50°C, Refer To Technical; -20°C to 40°C, Gulf HT Fluid TO-4 10W; -15°C to 50°C, Refer To Technical; -20°C to 40°C, Refer To Technical / Gulf Supreme Duty XLE 10W-30
f.
Capacity unquoted
g.
Alternative recommendations: -40°C to 10°C, 0W-20; -40°C to 20°C, 0W-30; -30°C to 20°C, 5W-30; -20°C to 10°C, 10W; -20°C to 30°C, 30; 10°C to 50°C, 50
h.
Alternative recommendations: -40°C to 10°C, 0W-20; -40°C to 20°C, 0W-30; -30°C to 20°C, 5W-30; -20°C to 10°C, 10W; -20°C to 30°C, 30; 10°C to 50°C, 50
i.
Use 197-0017 axle & brake oil additive as directed.
j.
Alternative recommendations: 10°C to 50°C, Gulf HT Fluid TO-4 50; -20°C to 10°C, Gulf HT Fluid TO-4 10W; 0°C to 35°C, Refer To Technical / Gulf HT Fluid TO-4 30; -15°C to 43°C, Refer To Technical

General Notes

There are no notes to display for this model

Oil Change Intervals

Transmission (Direct Drive)
Months Max
6
Hours Max
1000
Hydraulics
Months Max
18
Hours Max
3000
Transmission (Power Shift)
Months Max
6
Hours Max
1000