antifreeze and oild leak, car overheating on 2001 Chrysler 300M

I have to add antifreeze and oil to my car before driving short distances for it not to overheat. There is a residue on the front windshield.

Asked by for the 2001 Chrysler 300M
I think you have a leaking heater core and an oil leak. A residue on the inside of the windshield would be coolant mist, residue on the front side of the glass could be oil from a big oil leak. A Chrysler specialist could diagnose and estimate these problems for you.
Here's a diagnostic link for you: