Tahoe 4WD V8-393 6.5L DSL Turbo VIN S (1995)
Refrigerant Oil: Capacity Specifications
REFRIGERANT OIL DISTRIBUTION
The Harrison HT-6 compressor system used on all models requires polyalkaline glycol (PAG) refrigerant oil in the quantities listed below:
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Without Aux. A/C - 240 ml (8 fl oz)
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With Aux. A/C - 330 ml (11 fl oz)
New oil quantities must be added to the system during component replacement and conditions stated as follows:
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With no signs of excessive oil leakage, add:
A. All Compressors (drain and measure the oil)
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If less than 30 ml (1 fl oz) is drained-add 60 ml (2 fl oz) to the new compressor.
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If more than 30 ml (1 fl oz) is drained-add same amount that was drained to the new compressor.
B. Accumulator-Add 105 ml (3.5 fl oz) of new oil to the replacement accumulator to compensate for oil retained by original accumulator
desiccant and bag assemblies. The accumulator should only be replaced if leaking due to a perforation, damaged O-ring seal seat, or
damaged threads.
C. Evaporator-Add 90 ml (3 fl oz) of new refrigerant oil.
D. Condenser-Add 30 ml (1 fl oz) of new refrigerant oil.
REFRIGERANT OIL LOSS DUE TO A LARGE LEAK
If the refrigerant charge is abruptly lost due to a large refrigerant leak, approximately 90 ml (3 fl oz) of refrigerant oil will be carried out of the system
suspended in the refrigerant. Any failure that caused a abrupt refrigerant discharge will experience this oil loss. Failures that allow the refrigerant to
seep or bleed off over time do not experience this oil loss.
Upon replacement of a component that caused a large refrigerant leak, add 90 ml (3 fl oz) of new polyalkaline glycol (PAG) refrigerant oil plus the
desired amount of oil for the particular component.
