How can I tell if the A/C in my car has enough, if any oil in the system?

I recently bought a used car and the a/c is not getting very cold, there isnt a lot of pressure in the system (I have a gauge). I know that I need to add more refridgerent, but is there any way of checking the level of a/c oil in the system? I want to make sure there is enough in there so i dont end up blowing up my compressor down the road.
How can I tell if the A/C in my car has enough, if any oil in the system?
Really, you don't. In the service manual, the only way to know how much oil you have is to REMOVE IT ALL. That's pretty much what you'll see in any service procedure.
How can I tell if the A/C in my car has enough, if any oil in the system?
yeah really the only way to know how much oil is to the oil from the system is to do a complete recovery of the a/c system.





you can have a shop do this pretty cheap..in my area ive seen it as cheap as 60 bucks for a complete recovery and recharge..which will come with oil and dye installed...that is if its a reputable shop
Reply:If there has been no major part failure that would release the oil it is ok.
Reply:Look at teh Quick Discconect couplings for the system hoses. If they seem grimey and fouled with oily dirt, the systems o-rings are leaking and you've lost a good bit of your AC oil. If they look clean, you might be able to get away with the oil in the system, but as this is a used (new to you) car, I might be reluctant to guess..





I usually add a can of oil when I recahrge an older leaky system with R134 for a home job that I know the histoy of the car. If not, I suggest you have a total evac and recharge done by someone who's competent. Since you rlow on R134, I'd want to find the leak.





Astrobuf.