Which type of oil to use

People don't believe that when I tell them. When I tried 20/50, It popped right off cold and immediately shut off when I took my foot off the gas, like it was on a dyno brake. I couldn't believe it.
I believe it.

I did an oil change in my 30 deg garage.

The oil was out there too.

Like I said earlier it poured like molasses. The color was different too, almost looked cloudy