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Make
CATERPILLAR
Model
973 WDA (Track Type Loaders)
Engine
DT

Application
Recommendation
Capacity (ltr)
Engine (DT) (Cat 3306T)
1st choice
Refer To Technical (b)
(a)
2nd choice
Gulf Supreme Duty LE 15W-40
Transmission
From Hydraulics
(a)
Hydraulics
Refer To Technical (c, d)
(a)
Coolant
Refer to Technical
(a)
Final Drives (each)
1st choice
Refer To Technical
(a)
2nd choice
Gulf HT Fluid TO-4 50
Grease Points (Molybdenum)
Gulf Crown LCX 2
Grease Points (Multipurpose Lithium Greases)
Gulf Crown LC 2
Grease Points (special purpose high temperature anti friction bearings)
Gulf Gem 1.5

Lubricant / Capacity Notes

a.
Capacity unquoted
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.
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
d.
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

General Notes

There are no notes to display for this model

Oil Change Intervals

Hydraulics
Months Max
18
Hours Max
3000