What type of oil is used with 134a?
Polyolester oil (POE oil) is a type of synthetic oil used in refrigeration compressors that is compatible with the refrigerants R-134a, R-410A and R-12. It is recommended by experts as a replacement for hydrofluorocarbons (HFCs).
Do you have to add oil after an A / C recharge?
Since there was no parts replacement, would that eliminate the need to add oil? Or should I still include oil during the recharge of the A/C? To answer your question you put back in the same amount that came out when you evacuated the system. If none came out I usually add 1 to 2 oz depending on the size of the system.
Can you add refrigerant oil to an AC system?
On top of that, it’s difficult to add oil to the AC system with DIY tools. Professional AC equipment comes with provisions to add the correct amount of oil with each charge. Off-the-shelf cans sometimes come with refrigerant oil in them as well.
Is it safe to charge an AC system with oil?
Oblivion is correct…95% percent of the oil stays trapped in the compressor. With very slow leaks, very little if any oil escapes…The ONLY way to safely charge an A/C system is with a SET of gauges so you can monitor BOTH the high and the low side as you are adding refrigerant…
How much Oil can I put in my AC system?
Base your oil recharge on how much oil came out during evacuation. You can put to much oil in the system. AC work goes to the shop IMHO I agree. I do not classify automotive AC work as do-it-yourself. An evacuation only removes air and moisture. It doesn’t remove oil.
Since there was no parts replacement, would that eliminate the need to add oil? Or should I still include oil during the recharge of the A/C? To answer your question you put back in the same amount that came out when you evacuated the system. If none came out I usually add 1 to 2 oz depending on the size of the system.
Oblivion is correct…95% percent of the oil stays trapped in the compressor. With very slow leaks, very little if any oil escapes…The ONLY way to safely charge an A/C system is with a SET of gauges so you can monitor BOTH the high and the low side as you are adding refrigerant…
On top of that, it’s difficult to add oil to the AC system with DIY tools. Professional AC equipment comes with provisions to add the correct amount of oil with each charge. Off-the-shelf cans sometimes come with refrigerant oil in them as well.
How much oil to add on for full system evacuate and recharge?
For a full system evacuate and recharge (R134a, ’94 Jag XJ6), how much oil should go into the system with the refrigerant? According to my Haynes techbook, you need 4 to 5 oz. Base your oil recharge on how much oil came out during evacuation. You can put to much oil in the system. AC work goes to the shop IMHO I agree.