what kind of oil do i put in my a/c compresser

88 cherokee 4.0 I6

 

R12 or R134a ?????? whats the difference

 

if it says r12 on the top compressor they got some stuff called freeze 12 that is legal that you can put in it. i just put it in mine today and it work great if the sticker is missing the 88 used r12 i bet because my 92 says r12

 

thanks

 

You need to service your system with 134a......and if you have an older XJ that used to have R12, you have to purge it and fill it with R134a. I found this out the hard way a year ago when I was in Cali. The environmentalists came up with another way we are supposedly killing off the Ozone layer. (R12) refrigerant. Anyhoo, so the local crook mechanic wanted to charge me right at $200 to purge, service and dispose of the old R12. I figured they would come up with a more reasonable price for something that was supposedly mandated by law. So, I went to Walmart and got myself a handy dandy R134a servicing kit and did it myself for $35. I probably didn't to the purging part in the proper or best way but, I purged the R12 out od mine and serviced it up with the R134a following the directions in the little kit I bought and my A/C and Defrost has worked fine since.

 

thanks for that info i go to school for auto mechanics and in our shop we have a few charging machines ill just do it there

 

Awesome, Bro. That's what I say. Do it yourself!