if it is milky (like chocolate milk) then you've got water mixing with your oil - most likely as a result of a blown head gasket or cracked head (cha-ching) both are expensive fixes.
I congealed the soup by not warming it up.
congealed
congealed
The gravy congealed in the pot as it cooled, and it was hard to scrape off later.
Causes of oil pollution in Venezuela are oil spills and they are a major producer of oil so that causes a lot of oil pollution
an oil leak
oil getting by the rings causes white smoke and oil dripping out of the tailpipe.
engine burning oil
Not enough oil pressure and / or the oil channel is plugged
Friction
oil