ALTERNATOR GP 3583367 - Caterpillar

Table 1
Recommended Lubricant Viscosities for Ambient Temperatures (1)    
Compartment or System    Oil Viscosities    °C    °F    
Min Max    Min    Max    
Engine Crankcase
CH-4     SAE 10W30     −20     +40     −4     +104    
SAE 15W40 -15     +50     +5     +122    
Hydraulic Systems
HYDO     SAE 5W20 (SPC) (2)     −30     +40     −22     +104    
SAE 5W20 −25     +10     −13     +50    
SAE 10W −10     +37     +14     +99    
SAE 10W30 −5     +50     +23     +122    
SAE 15W40 +4     +50     +39     +122    
SAE 30 +10     +50     +50     +122    
Differentials and Final Drives
TO-4 or TDTO     SAE 5W20 (SPC) (2)     −30     0     −22     +32    
SAE 10W −30     0     −22     +32    
SAE 30 −20     +25     −4     +77    
SAE 40 −10     +40     +14     +104    
SAE 50 0     +50     +32     +122    
Transmission and Pump Drive     SAE 80W90     −20     +40     −4     +104    
( 1 ) When you are operating the machine in temperatures below −20°C (−4°F), refer to Operation and Maintenance Manual, SEBU5898, "Cold Weather Recommendations". This is available from your Prentice dealer.
( 2 ) These special oils that contain synthetic base stocks do not contain polymer viscosity index improvers. The high viscosity index of the "synthetic" oils provide natural multiviscosity properties.