Speedaire 3Z180 is putting a lot of oil into the tank.
It has gotten much worse since I put a 7.5 hp 1725 rpm motor on it with an 8" pulley.
It had a 2 hp motor on it before with a 4" pulley.
With the smaller motor, I had to add oil once a year, now it's once a month.
Are they worth rebuilding? I can buy a complete used unit (tank,comp,and motor) for $500.