1991 Toyota Corolla Unusual leak color

Engine problem
1991 Toyota Corolla 4 cyl Two Wheel Drive Manual 230k miles

Hi, I recently discovered a coffee plate sized puddle of miilky grease under my engine. When I go down to look the stuff seems to run around my left front axle and the underside of the oilpan. This axle and strut was replaced only about a year ago. My skills working with cars is just about intermediate, so any hints you can give me to narrow down the source of the white grease would be most helpful. Thanks in advance.