Opinions here on oil quality with vented atmosphere DRAIN BACK catch can?

[Stopsign32v]

I know I have read in the past on other forums that the condensation and oil can get mixed and cause a milky consistency. Combine this with a drain back feature and I've read that this can be bad for your oil.

I've at the same time read this happens inside the engine regardless and once the engine gets up to temperature the moisture gets burned off.

So this being a oil forum, what is the consensus here with this and it's effect on the oil in the engine?

 

[Faawrenchbndr]

Many people who live in rural areas that drive short trips will deal with this more than those who may have a 30-45 minute commute in larger city area.

I believe in the catch cans. I do not subscribe to the systems with the drain back feature. I also think there are additional contaminants, fuel dilution for one that comes into play with direct injection engines.

A lot of info both ways. An oil separation system can be extremely damaging if not properly monitored and drained regularly as well.

 

[Mainia]

There was another issue that stopped me from using one in my car. I am a short tripper with just 10 miles to work and use my car for getting stuff at Menard's/Home Depot 4-7 times a week, at 6 miles. I was reading in the different car forums, but mostly in Audi/VW of people in cold winter areas that where freezing up catch can hoses from condensation getting trapped. This then popped various seals out of the car from no PVC system. While I could use one seasonally I chose to just stay OEM design and manually clean out the ports in a later time. I pulled my intake manifold a bit at 40,000 miles and it was not bad, because my foot is in all the time, and I run MID SAPS oil too.

As far as oil contamination, I dump oil at 3,000 miles, and just don't let it worry me, as I figure modern day oil manufacture's chemist's have me covered in my 3,000 mile oil change window.