Opens in a new window Opens an external website Opens an external website in a new window This website stores data such as cookies to enable essential site functionality, as well as marketing, personalization, and analytics. Unscrew the protective cap on the car's air conditioning low pressure port. I bought one of those re-charging kits at Advance auto and the two cans of R134 both contained oil. Base your oil recharge on how much oil came out during evacuation. Similarly, you may ask, how much refrigerant oil should I add? Thanks for the tip! First of all, check whether your refrigerator is eligible for the r134a. So basically if leaks have occurred or work has been done before, and not done carefully, there is no way to know precisely how much oil is left, it seems. Share Improve this answer answered Jun 20, 2016 at 1:17 john D. 552 2 5 Add a comment I only need 10 mL, so I'm looking for a way to add 1/3 oz. mcparadise June 29, 2008, 5:35pm #4. Once you confirm it, then you can add Freon by yourself. It is carried throughout the system in the refrigerant. If the compressor was bad, you should be flushing the system which will remove all the oil along with the debris. It has a Nippondenso 10 cylinder compressor. Newer vehicles with R-1234yf A/C systems require a special PAG YF 46 or PAG YF 100 compressor oil, which one depends on the compressor and the requirements of the vehicle manufacturer. General Motors recommends GM lubricants only (PAG-PSD1 #19260643 for 2013/14 Cadillac XTS, and PAG-ND12 #19299051 for 2013 Cadillac ATS) with R1234yf A/C In addition, its not a good idea to mix R134a refrigerant oil with R12 oil. This becomes an issue if youre retrofitting an AC system. On top of that, its difficult to add oil to the AC system with DIY tools. When an A/C system leaks refrigerant, some oil escapes also. from there I got "R12: 53 ounces=1502 grams, mineral oil 6.75 ounces=191gram". You would require only the R134a refrigerant oil. It is usually added in when the system is charged. Nest is POO! Most refrigerators also do not use Freon, so there are many consequences related to it. The compressor is an air conditioning system component that requires sufficient oil to function correctly. Unless youve modified the compressor or theres a leak causing the system to spill oil, theres usually no need to add oil to your cars present AC system. Oil and refrigerant capacity table for BMW vehicles. However, more of a concern is that the R1234YF uses a different oil in the system from R134A. Advance Auto Parts. Slight over oiling is not a problem so I tend to be conservative. New 134a rotary compressors come with a full system charge of PAG oil, which is compatible only with 134a refrigerant. If your compressor is going into a system that has previously been installed, its important to get as much of the original oil charge out of the system as possible to protect against an oil overcharge. This becomes an issue if youre retrofitting an AC system. You can also get the stuff from Autozone, Advanced auto parts or Pep boys, but Walmart sells it the cheapest. Water in the system can cause problems that includes rust and icing in the sytem (after refrigerant is in the system). You won't necessarily need more dye as it is strong stuff. Recomended amount of time to can of oil to them, (just as a precaution and it won't hurt). Don't worry none will flow out yet. The total amount of R134A that they hold is 17.6 Ozs. This is why a qualified shop is best when an a/c system is totally empty or opened up. If so, what type and how much? If it was 0.5 oz then I might not. In addition, there was the lubricant issue. BMW Refrigerant and oil capacity charts || TechChoice Parts. If your compressor is going into a system that has previously been installed, its important to get as much of the original oil Of course, if you How do you add oil to AC recharge? Add the right type and amount of oil and secure the rear cap. But I have never read how to purge the hoses in the manifold gauge set of air before I tap the R134A. I have my trusty harbor Freight A/C manifold gauge set and a couple of tap cans. Rick99. maybe during a compressor changeout or a switch to a new refrigerant, but in normal operating and repair circumstances it would be never. This simple fix recharges the R-134a (freon), stop leaks & gets your car A/C cold again. Our products all have the proper ratio of oil to refrigerant already blended to replace the lost oil. New, R12 Rotary compressors come with a full system charge of Mineral Oil, which is compatible only with R12 refrigerant. However, Freon is toxic, so you need to be careful while adding. This simple fix recharges the R-134a (freon), stop leaks & gets your car A/C cold again. Are you adding the PAG oil in the can (I think it's a 6oz can that I got from Walmart). What type of oil is used with 134a? You can put to much oil in the system. This is a push lock in type. Refrigerant Capacity 0.50 0.025 kg (1.100.055 lb) You must remove all moisture before charging the system with refrigerant to prevent such problems. According to my Haynes techbook, you need 4 to 5 oz. Do I need to add oil when adding R134a? On top of that, its difficult to add oil to the AC system with DIY tools. Bennett Auto Supply. You can find the Red Angel Oil Injector and other Red Angel AC products at any of our partnering auto parts stores like: AutoZone. The R134a / PAG oil combo looks like a good option if someone needs to add a full 2 oz of oil, but it doesn't look like the right thing for the receiver drier replacement situation. New 134a rotary compressors come with a full system charge of PAG oil, which is compatible only with 134a refrigerant. The system must be tolerant of a reasonable range here. I would go with the oil. AC work goes to the shop IMHO. Once youve got the correct type of oil, you can use the Red Angel Oil Injector to add the AC compressor oil to your system. You can find the Red Angel Oil Injector and other Red Angel AC products at any of our partnering auto parts stores like: oldschool June 29, 2008, 5:06pm #3. Step 2: Screw on the automotive air conditioning adapter onto the end of the blue hose. Remember you only want to remove any oil left in the system; if you needed to flush the swarf of a failed compressor away i would have told you to replace the condenser (and the TXV too if dirty) and Adding R134A. This might seem like common sense but important enough to be reinstated to prevent accidents. Hold the compressor so that the open end is facing upward. Bottom line, R134a simply doesn't cool as well as R12. Because A/C compressors have moving parts, they require oil. Insert a funnel that fits into the opening and slowly pour the recommended amount and type of oil. Also, the oil can help to deal with some of the moisture in the system. Oh and BTW: OTC recharge refrigerant in-a-can typically comes with 2 types (citing "Quest" and "Interdynamics" brands) one is R134a with ester, while the other is R134a with PAG (standard). I agree. The AC compressor I got off Ebay has a 8 oz bottle of this PAG oil to add to the compressor. I used about one can of that oil and a few cans of R134a. www.techchoiceparts.com. This simple fix recharges the R-134a (freon), stop leaks & gets your car A/C cold again. How To Add PAG Oil Into An AC System Watch on If it's PAG, you shall recharge with PAG oil type only. So I need to add some R134A. Furthermore, mixing R134a refrigerant oil with R12 oil is not a smart idea for a variety of reasons. If youre worried about not being able to add in the correct amount of refrigerant oil, you can also opt for a refrigerant that already has the oil mixed in with it. Year: 1991 Make: Honda Model: Accord Engine Size: 2.2 Refrigerant Type: r134a Country of Origin: United States . the oil is not a component of the refrigerant itself but added separately by the factory. Once youve got the correct type of oil, you can use the Red Angel Oil Injector to add the AC compressor oil to your system. You have to check the oil capacity for your system in the manual. Yes there is oil in the system to keep the compressor lubricated. Techniker June 24, 2010, 4:04am #11. How do I add R134a to my refrigerator? Below are other reasons why many decide NOT to convert from R12 to R134a: 1. When just replacing a hose you shouldn't need to add any oil to the system. When flushing an AC system, its important to follow the instructions in the OEM service manual and add the correct amount of PAG oil. However, after evacuating and recharging I always add a 3 Oz. R134A is more hygroscopic than R12, so it is more prone to moisture absorption. BustedKnuckles June 29, 2008, 3:40pm #2. Turn on the blue (low pressure) valve a bit (not fully open) to get refrigerant into the blue hose. As such you don't need to get any strange chemical in the AC system when you flush; just use R-134A with a closed loop flushing system, a few minutes for each system section. R134a Recharging Kit For this how-to tutorial we are using our ZeroR R134a AC Refrigerant Top Off Kit. in residential applications there is rarely ever a need to add oil. I need to buy some freon R134a to recharge my 2001 GC AC system. 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. Opens in a new window Opens an external website Opens an external website in a new window This website stores data such as cookies to enable essential site functionality, as well as marketing, personalization, and analytics. So the difference between 1-1/6 oz, 1-2/3 oz, and measuring what comes out is not something to worry too much about. In addition to refrigerant oil, certain off-the-shelf cans may include refrigerant oil. Then, screw the rear cap on tightly and use a wrench to tighten it further so its secure. Dont be mistaken: a modern R134a system will outperform a 30-year-old R12 system. I plan on flushing my ac system and then there will be no oil in it, so what is the best way to add oil, all in the compressor or do I have to add the certain amount into every component? Question 2: If I put in refrigerant (top off), do I need to add oil too? Your old R12 system which I assume was converted to R134a typically has a larger oil charge, like 4 oz or so. Things You Will Need To Top Off Your R 134a Air Conditioner. The smaller the oil charge the greater the impact of lost oil. ! I also noticed that most of the cans sold there contain oil, so I figured it must be harmless to add even though you don't know if you need it. You'll find it hard to determine how much oil to add. 1. R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. I figured that since I know that oil has not been added for 13 years, the best guess would be to add the oil. This is simply a comparison of a solid running R12 system and an R134a conversion. On top of that, adding oil to the air conditioning system using hand tools is a challenging task. Of course, you should never exceed the recommended capacity of your system. An average car might use a bit of oil (4 oz. ) We stand behind the ZeroR Brand with a high-quality product, customer support and free shipping in the USA. If I understand the math here correctly, 8 oz = 237 mL of refrigerant oil. Its probably leaked out with the R-134, but I would try to find the leak beforehand (you can buy a dye tracer kit for relatively cheap, plus it makes a fun weekend project). Professional AC equipment comes with provisions to add the correct amount of oil with each charge. since convert R134a system refilled to about 75% of original capacity, I got refill R134A with 39.75 ounces=1127 grams. and two cans of refrigerant R-134a (12 oz.) 180 ml of oil is equivalent to 6.09 oz of R-134a or 0.6 kg is equal to 1.4 lb. Gloves; Safety glasses; Step 1: Turn On Your Car and A/C In addition, its not a good idea to mix R134a refrigerant oil with R12 oil.