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AC Charge Capacity
Topic Started: May 20 2018, 09:38 PM (111 Views)
Thart10


How much R 134 does a 90 Metro AC system NEED?
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geogonfa
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From Geo's Garage, post #67 :type
http://geometroforum.com/topic/8111407/5/


89-94 freon capacity:
134a system=17.6 oz. freon...3.4oz. of pag 100 oil add .07oz. for condenser and .03oz. for the receiver/drier
r12 system =18.0 oz. freon...3.0oz. of MINERAL oil add .02oz. for condenser and .03oz. for the receiver/drier
Retrofit Oil, or better known as ESTER OIL, is compatible with both systems and is a lot less hydroscopic (absorbs moisture from the air)

though I recommend envirosafe if still using the r-12 system...
1 6oz. can of enviro safe equals 16oz. of 134a (1 can is only 12oz.) so basicly one can of envirosafe will work for the r12 system without changing anything but the retrofit fittings and/or replacing the "O" rings...
Edited by geogonfa, May 20 2018, 10:32 PM.
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Thart10


Thanks! Couldn't find that info anywhere.
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