bullet proof 96 cherokee did pass the time by typing:
> HERES A GOOD ONE! I'LL TELL MY WHOLE ORDEAL.
> I CHECK FREON IN MY 96 CHEROKEE SPORT AND P.S.I. WAS LOW (20) SO I BOUGHT
> A CAN OF FREON WITH 2 OZ OF OIL(PAG), LEAK DECTECTOR,SEALER,ETC.
> I ADD THAT CAN AND IT WAS STILL LOW. I ADDED ANOTHER CAN OF THE SAME STUFF
> THEN I GOT PROBLEM: P.S.I WAS WAY HIGH AND COMPRESSOR WOULD ONLY TURN ON FOR
> 2 SECONDS THEN OFF FOR A BIT REPEATLY AND AIR WAS NOT COOL.
> HERES WHAT I DID(DON'T TELL THE LAW; I HATED DOING THIS)TO FIX MY PROBLEM
> I WAIT FOR THE COMPRESSOR TO ENGAGE AND OPENED THE ZERK FITTING UNTIL
> OIL CAME OUT AND IT LOOK LIKE THE OIL AND SEALER, ETC I ADDED CAME OUT 4-6oz
> AND THE COMPRESSOR STAYS ON AND I HAVE 30 PSI @ 75-80 DEGRESS HEAT AND COOL
> AIR. I GUESS MY QUESTION IS HOW MUCH OIL IS NEEDED IN THE A/C SYSTEM? SHOULD
> I ADD SOME ( ABOUT 2oz) OIL? ANY HELP WILL BE GREATLY APPRECIATED!

....

Capslock is not your friend.

....

You need to have your system evacuated and pumped out by a professional
as you now have way too much oil in there. Oil, unlike 134a does not compress
and if you get enough into the compressor it will self destruct. Generally
you never add oil to an AC system unless it has been completely emptied or
the accumulator has been replaced.

You may be lucky, but what ever you do, DO NOT add more oil!

--
DougW