Here's what the JLT 3.0 collected after 221 miles of driving in temps between 0F and 40F. I didn't see any oil droplets. It reeks of fuel though, so it is most likely the fuel vapor separated by the factory oil vapor separator. I'm not sure if this is a good sign or not. Am I supposed to see oil in the JLT driving in the winter? This was about 1 oz of fluid, quite a bit. However, this fluid would have combusted just fine after passing through the intake manifold, and may even help with cleaning the intake valves?
The JLT on my 4.6 3V Mustang GT collects oil like crazy, but that is only driven during the summer.