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Re: AC System Lubrication Question Posted by Gene N [Email] ![]() ![]() ![]() In Reply to: AC System Lubrication Question, Mike Johnson, Mon, 23 Jun 2003 04:48:42 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Normally when a shop drains an A/C system, the oil is separated out from the recovered refrigerant. The weight of the refrigerant in the recovery tank is measured before and after the recovery operation to figure how much refrigerant was left in the system. From the amount of oil recovered and the amount of refrigerant "missing", you can get an idea of how much oil add back into the system. This would be about 1-2 ounces of oil for a full recharge under normal circumstances and without replacing any other components.
Is the system R12 or R134a? If it is R12 you can check the sight glass to see if there are any bubbles (low Freon).
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