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2006 grand caravan 3.8 liter, dual AC system. Replaced condenser blocked off leaking rear system, pulled vacuum no leaks. AC has not worked for one and a half years. Need to add 3 oz of oil, wish to prevent liquid lock of compressor. I have can of oil that will connect to yellow line of gauge set total of 3 oz dryer will be replaced immediately before final vacuum. 1.) Do I manually turn compressor how many turns before or after I charge system with oil? 2.) Do I add oil prior to Freon or after freon and which side high or low pressure does the oil flow into through the yellow manifold hose? I do know not to put amount of freon for a dual system but a single system. 3. ) Does the amount of 3 oz of oil account for any reduction of freon considering it may be pressurized with freon? It is a very small can. Additional tips and tricks appreciated. Thank you for your information
 
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