PAG/Ester Blend AEON PG Air Compressor Oil AEON PG is a custom-blended polyalkalene glycol (PAG)/ester rotary screw lubricant. AEON PG's formulation offers lubrication at high and low temperature applications and corrosion protection. AEON PG is formulated to minimize carbon buildup. Extended service life to 8,000 hours Free oil analysis program Will not leave behind caron residue/varnish when it oxidizes Completely demulsible Rust and corrosion inhibited