Good info CFXCH,
thanks. My air drier just started blowing oil too. No oil loss that I can see.
Exactly where is the compressor located on the engine? Driver side, Passenger side, toward front of rig, or rear? Did you end up replacing the compressor with a new one, a rebuilt one or repairing the one you had? Also what was your cost? You mentioned $4000 but I wasn't clear on whether that was parts, labor, shipping, other charges or all of the above.
Any additional info would be appreciated.