My old wind broke 49 216 has all kinds of stuff blowing out when I 1st start it up, especially when it's cold out.
Oil, soot, condensation, water and vapor, it looks like it's doing #1 and #2 simultaneously LOL. Then once it warms up theres hardly a wisp of anything, except the slight smell of oil burning.... I don't mind it as it keeps the tail gaters back.
As said, it's probably just condensation and the byproducts of combustion. But keep an eye on your coolant level just in case.
Dave