90S Quattro (Canada) V6-2.8L (AAH) (1993)
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Hose/Line HVAC: Description and Operation
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The mixture of refrigerant oil (PAG oil) and refrigerant R-134a attacks some metals and alloys (for example, copper) and breaks down certain
hose material. Use only hoses and lines which are identified with a green mark (stripe) or the lettering "R-134a"
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Hoses and lines are secured with threaded connections. Always properly torque hose and line connections
