I just changed my plugs today and these have 31,000 miles and 5 years on them. About 26,000 of the miles were with the Stef's oil seperator setup that I am using. I went ahead and replaced them with the Autolite HT1's although I could have gotten several thousand more miles out of these.

 

Excellent!

I was wondering about that when I read the other thread and how ugly those plugs looked. You know that if atomized oil from the crankcase is baking on the butterflies, its baking in the combustion chamber too...

 

Nice!!!!

 

You mean YIKES!!!!

 

Now imagine how the tops of the valves look.

been running one for a long time. No its not a high end unit, but it functions very well. The pcv system on these engines is really weird. I have experienced knock from oil being ingested into the intake. Not to mention surging issues.

 

Question: If all that oil is getting into the cumbustion chambers and then you add the oil separator after 20k or so miles, is there a natural process that will "clean" the baked-on oil out of there? Or is it pretty much once that oil is in there and baked on, it's there for good until/unless you disassemble the engine to clean it out?

I'm wanting to add one of these to our car, but I'm just curious if there would still possibly be some issues from the oil that may have already gotten through into the combustion chamber.

 

I think you would have to seafoam it good one time.

 

You can spray out the intake manifold with tb cleaner. Will take a few cans tho. Just delete your PCV all together like I did and have no worries. Just have to make sure your routine with ur oil changes since the oil will be more acidic. Add breathers to the valve covers, cap off both intakes and done.