Oil Catch Can Update, 2013 w/ 199K

I have put about 8K on the Gen 3 I recently repaired (broken input damper plate and clogged EGR cooler). I added an oil catch can between the PCV valve and intake manifold. In 8,000 miles, it accumulated 3 OZ of dark colored oil (much darker than the corresponding crank case oil perhaps because of added combustion byproducts) and maybe a pencil eraser worth of granular debris (carbon?). This fluid level was about half of the can's capacity so I'm thinking each oil change will work for dumping it. The Cat on this car is already compromised from burning oil and other crap, I think, but it doesn't produce significant back pressure.

 

Thanks. I'm thinking it's either dump in oil recycling or burn the oil and carbon through the intake/combustion process. If there was a way to clean up the EGR gasses, that would be nice as well.

 

I agree that intervals shorter than 10K are better as oil viscosity suffers over time. I'm probably going to stick with 8K or less, although I'm not a model of consistency. I've done a Gen 3 head gasket and I've done engine replacements (generally not on my own cars). I think the biggest Gen 3 problem is the EGR cooler clogging around 50K to 70K depending on driving conditions. I think that interval is much more critical than the oil change and there's no doubt the EGR cooler clog can cause broken head gaskets, bent or broken connecting rods, broken crankshafts, broken input damper plates, etc. When you see codes for cylinder misfires, it's time to think about the EGR cooler. I'd start with the EGR cooler if it's not been done in 50K or more. It's an engineering problem peculiar to the Gen 3. If you're losing coolant or hear a loud clanking in the power train, you're just a whisker away from catastrophic damage.