What kind of Freon does my car need?
Originally, R-12 Freon was used in car air conditioners. However, it was found that when a car emits R-12 Freon, it depletes the ozone layer. The Environmental Protection Agency outlawed ozone depleting substances in 1994 and, as a result, R-134a Freon is now used instead.
Can you replace R134a with R12?
R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Bottom line, R134a simply doesn’t cool as well as R12. The advantage of ester oil is that it works with both R12 as well as R134a, so you can fill the system with it and then use either refrigerant.
Does it matter what Freon is used?
So, a good rule of thumb is if you own a vehicle that is newer than 1995 your engine should take R135a refrigerant, but if you have a vehicle older than 1995 you are going to be purchasing R12 refrigerant. If you are still concerned you might be using the wrong refrigerant, look under the hood.
What is pag 46 refrigerant oil?
Fully synthetic, polyalkylene glycol (PAG)-based oil which is used for the lubrication, sealing and cooling of refrigerant compressors or refrigerant circuits in passenger or commercial vehicle air conditioning systems.
Can PAG 46 and PAG 100 be mixed?
Note: Using the wrong oil can cause damage. ➔ PAG oils are highly miscible with R134a (PAG oils 46 YF and 100 YF also with R1234yf) and are suitable for lubricating the air conditioning systems of most passenger and commercial vehicles.
What is PAG 46 oil used for?
MANNOL PAG 46 Refrigerant Oil 9891 Fully synthetic polyalkylene glycol (PAG) refrigeration oil for the lubrication, sealing and cooling of air conditioning compressors and cooling circuits of these systems. Miscible with type R134a refrigerants.
When should I use PAG oil?
PAG is actually an acronym for Polyalkylene Glycol, and it is a synthetic oil used in A/C systems to lubricate the compressor. Most all newer model cars use PAG as the lubricant in the A/C system.
Does PAG oil go bad?
As long as you have the system sealed up you should be fine.
How do I know if I have too much oil in my AC?
The most glaring sign of an overfilled AC system is poor cooling because an internal coating forms resulting in reduced heat transfer. For instance, you might notice that it’s taking way too long to cool things or your windows stop defogging properly.
Does vacuuming an AC system remove the oil?
But… there will remain a certain amount in low spots of your condenser, drier and evaporator. Pulling a Vacuum on the system (especially for just 30 minutes) will not remove much (if any) of that oil…and only then…if it had absorbed moisture.
What happens if AC compressor has no oil?
Without enough oil in the crankcase to properly lubricate the load-bearing surfaces, wearing and scoring happen. There just isn’t enough refrigerant mass flow in the system to return oil to the compressor as fast as it is pumped out. Without enough oil, those surfaces become visibly scored or worn.
What happens if too much oil in AC system?
If you add too much oil to the system, it may pool in various places of the system and can coat the inner walls of the evaporator and condenser coils. This will diminish their ability to absorb or dissipate heat, thereby bringing down the overall cooling performance.
How long should I vacuum my AC system?
With a vacuum pump connected to both, low and high air conditioning system sides pull a deep vacuum for at least 5-45 minutes. A vacuum of about 500 microns or 29.92 hg gauge pressure is needed for removing any moisture that may have entered the system along with the non-condensable gases while it was open.
How can I vacuum my AC without a pump?
Install an access valve on each end of the air conditioner system to vacuum it without a pump. Locate the low and high ends of the system, install an access valve on each, and charge it to 14 psi. Depress the access valves, lower the pressure on the low side, and close the high side access valve.
Is it necessary to pull a vacuum on AC system?
It is important to vacuum an air-conditioning system to remove any air or moisture that may damage the system in the long run. Moisture in the AC system is a serious problem, because moisture reduces the performance of the AC system and condensation of water can cause the AC system to freeze.
How do I find a vacuum leak in my air conditioner?
You can and should pull a vacuum, look at the reading on the manifold gauge set, let it sit for some amount of time (overnight is best), and see if the vacuum reading drops, because if it does, there’s a leak somewhere. But the vacuum itself is really almost no help in finding the leak.
Can a vacuum leak cause AC to not work?
3. Automatic or manual control system. If your air conditioning system is automatic, that can be the source of a problem. However, manual systems run off of vacuum, and if you have a vacuum leak then your system will not operate correctly.