1990 Chevy Lumina recharge a/c envirosafe refrigerant
July 13th, 2008, 1:20 AM
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1990 Chevy Lumina recharge a/c envirosafe refrigerant
I just replaced on my 1990 Chevy Lumina the a/c condenser due to a leak , after a sys vaccum , do I need to add oil for 134-a ?and how much quantity before I filled with refrigerant.
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July 16th, 2008, 9:35 PM
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RE: 1990 Chevy Lumina recharge a/c envirosafe refrigerant
I already know someone is going to disagree. With that said,,,,,You need PAG oil (parts store can getyou right weight). Get 8oz can & add 4oz.Thenfill w/134 at 85%of 12 amount.For example, if your car holds 2 lbs of r12 charge it w/1.7 of r134. Charge amount will be listed underhood.
July 18th, 2008, 3:03 PM
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RE: 1990 Chevy Lumina recharge a/c envirosafe refrigerant
ORIGINAL: jkgray80
I already know someone is going to disagree. With that said,,,,,You need PAG oil (parts store can getyou right weight). Get 8oz can & add 4oz.Thenfill w/134 at 85%of 12 amount.For example, if your car holds 2 lbs of r12 charge it w/1.7 of r134. Charge amount will be listed underhood.
I already know someone is going to disagree. With that said,,,,,You need PAG oil (parts store can getyou right weight). Get 8oz can & add 4oz.Thenfill w/134 at 85%of 12 amount.For example, if your car holds 2 lbs of r12 charge it w/1.7 of r134. Charge amount will be listed underhood.
I won't disagree with that
I will say that the vehicle's R12 capacity is 36oz which works out to be 2.25lbs which works out to be about 1.9lbs of R134a
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