bcb97

True but you're only talking about 2% though. Not enough to dilute what's already in the oil pan itself and not traceable either. Seems like a good design to me.

engineermike

That was sarcasm. Most of what accumulates in these catch cans is a mixture of oil and water. That Dana design probably doesn't cool enough to condense water vapor, so it's only draining oil back to the crankcase. The water vapor will pass harmlessly through the intake. Looks like a good design to me.

Kingofwylietx

Don't feel bad...nobody picked up on my sarcasm either.

DignifiedDevin

Not for nothing but I think a lot of you are missing the reason for the catch can. It's not there to catch the oil and particulates from going into the engine. It's to stop that from building up on the intake side of the valves. And since it's direct injection, the fuel that usually passes by the intake valves and would do a secondary job of cleaning the valves, simply doesn't happen in the design of the 3.5L. This guy took a preventive approach at a minimal cost to potentially save his investment all you guys do is bash him for it. What happens if ford does a huge recall 3 years from now? The damage is done. It wouldn't be the first time, Ford came out years later and said, oh yeah we screwed up.

Kingofwylietx

Not entirely true if you consider the 2017 2nd generation 3.5EB vs the 1st generation 3.5's. Maybe that is the reason they added port injection to the direct injection? Either way, maybe it was more useful prior to 2017?

Blue Flame Raptor

After a week of cold weather in Louisiana, my UPR large catch can was 90% full of mostly water. I am sure glad that did not go into my engine. Regardless of what some say about "ALL engines collect the same amount" needs to realize a turbo sucks a lot more air through the engine then a NA motor. In that air is humidity (especially in Louisiana). More air= more moisture. A NA motor does not benefit as much as a forced induction engine. If you look at most supercharger and turbo charger kits, you will find that most come with a catch can. May be a reason? To each is on. If you plan to keep the EB for less then 100k (like most people) then it probably doesn't pay to spend the money on one.

Bubbabiker

Adding port injection is for emissions. The reduction of particulate matter in the exhaust. Otherwise direct injected gas engines will require particulate filters in the near future (as with diesels today).

Kingofwylietx

Lordy, if they do that will there be regen cycles and DEF fluid required....like diesels?

Maybe they are trying to make internal combustion engines such a pain that we all switch to electric cars.

engineermike

Regen cycles, probably. To clear the particulate filter.

DEF, not likely. That is to deal with the high NOx diesels generate. Gas engines make NOx but much lower levels.

bcb97

With the 100s of thousands probably over a million eco boost engines, this simply just isn’t a problem in these engines. I have yet to hear of one engine that has had a valve coking issue and now that the 3.5 eco boost engine has been out since 2011, they’re are plenty with 100,200, and even over 300 thousand miles in them. Again no issues with valve coking. If this was going to be a problem, it would of been seen by now.