[f5fstop]

Adding to Ranger's message:
System will shut down if:
The A/C high side line pressure is over 429 psi,
The A/C low side line pressure is under 20-25 psi.

Your thought on the compressor blowing a seal sounds correct due to the thin oil coating the inside of the engine compartment. The entire A/C system contains a maximum of 7.1 ounces of polyalkylene glycol (commonly known as PAG oil) for internal lubrication of moving parts and seals. Could be a seal in a line connection, but the discharge and suction hoses are at the rear of the compressor, and if the oil is under the compressor where the clutch meets up to the compressor's body, it sounds like the seal blew.