I didn't read the link. Been through this enough to convince me that a proper working oil sep is worth it. I've rebuilt engines and have seen first hand the burned on fuel-oil mix/caked carbon on pistons and valves/valve stems. Power robbing junk that shortens the life of your engine. The crap smells of a mix of hot oil and spent fuel.

Perfectly clean oil with only 1500 miles on it:



My bowl is not as big as the Moroso or JLT, so I have to empty after every 1 1/2 tank of fuel. Look at that crap. A proper oil sep works! No cake and bake in my engine!



But by all means, do what you want with your engine.

 

I'm pretty sure you have that backwards, most people havwe the pass side. I have a JLT catch can on the pass side of my Boss. Works like a champ.

 

So its even more important for performance driving purposes because of the constant wot?

 

When Iinstalled mine today (passenger side), the tube was plenty wet with oil. I took several cotton swabs and was able to soak 3 out of 4 of them running them inside the tube. The drivers side was dry.

I have just over 36K, and will post the contents of the jar after a few weeks/thousand miles.

 

This is after only 100 miles of normal driving on my V-6. The JLT catch can works great. I don't want this crap going through my intake.

 

Use Amsoil and you won't need a catch can.

 

Right. It turns to straight 40w after a few thousand miles.

 

I bought one because I like the idea of keeping intake clean and think the catch can looks cool. Didn't buy because I think the engine needs it and is going to extend the life of the motor. There are millions of vehicles worldwide with 200K+ miles and still running good without the need of a catch can. I'm willing to bet that only 2% or 3% of people install catch can on their cars. Even a lot of car enthusiast don't install one. So this notion that all of the suddenly cars need them or else engines will die is a bunch of BS to me.

 

Funny you say this ... I changed the factory-installed oil at 5,005 miles and switched to Amsoil 10W40 XL oil.

At 5503 miles I installed a JLT passenger-side oil separator.

I'm at almost 5900 miles now.

Will check shortly and see what's in there.

(I keep forgetting until I get home and then the can is too hot to handle ... lol)

That's the Motorcraft 5W50 that's been tested to do that I believe ... I know that my used-oil-analysis of my 5,005-mile Motorcraft 5W50 oil shows the viscosity lower than it should be.
I can't wait to see what the UOA of 5,000-mile Amsoil 10W40 will look like.

.

 

You are welcome to you're opinion but not your own facts as they say. Techincal data as well as pics have been posted. Believe them or don't, who cares.
These engines are not the engines of the past. My old F150 with 253k sure as hell doesn't have hypereutectic pistons and powdered metal rods, and are not near as susceptible to caked and baked carbon causing outright failure such as the 5.0 #8 failures caused by detonation and slightly off A/F ratios.
The older engines were stronger and more forgiving. The new engines are much more efficient but less forgiving. Engineers allowing more blow by so as to give you 10k oil changes does not change the fact that the factory 4.6 & 5.0 are not forged engines. And in time, that cake and bake will rob HP and mileage from that brand new "more efficient" engine than when it left the factory. >And personally, I don't want to play into the auto industry's planned obsolescence any more than I have to. I also don't trust the JLT based on reviews from people here that tried 2 or 3 brands on the same engine and JLT collects the least - as in it is too restrictive. Therefore it is apparently more for looks than performance.
If you have never rebuilt any engines then give it a try and see just how much carbon builds up over the miles and just how hard it is to scrape off. Anything I can do to reduce that is a small price to pay for engine longevity and maintaining power and efficiency.
Of course, if a person just burns and turns vehicles every few years then naturally they don't care. But I want to keep my car for a looong tme...

 

Search the oil threads. There was a whole write up where the guy sent amsoil to blackstone every so many miles up to 10k. The oil held up ok other than turning pretty much to a 40w straight and seeing mileage drop.

 

cdynaco, I'm with you on the oil blow by. After seeing how much oil I was able to remove from the stock tube as I was installing the catch unit, it made me wonder how much oil mist has already traveled into the intake at 36K of driving.

 

not trying to bring up a old thread but im majoring in auto mechanics in college and have seen and learned about what problems carbon build up can cause so i installed a jlt catch can on mine 2 days ago and have already got it about 1/10-1/8 full.

 

For those that still don't think this is nessesary....after the install and oil change, I ran a week (just under 700 miles, mostly highway) and checked the can. Amazed that I had about 4 to 5 tablespoons of oil caught!

These work.

 

If this link works, this is the history of the PCV valve. Clears up (to me anyway) the oil the catch can collects isn't needed for anything. http://en.wikipedia.org/wiki/Crankca...ilation_system

 

One problem with the article: these late model engines used in the mustang no longer have a PCV valve. The tube from the valve cover runs straight to the intake; no valve. Oil mist is in that tube. Remove yours, use a cotton cue-tip, and run it inside the tube. You'll see the oil in the inner tube.

I don't care if anyone goes with a catch can. I have one, and I see the oil it collects. I'd prefer to keep this oil out of my intake and Throttle body.

 

 

Some people are saying oil is needed to lubricate things in the intake, i don't think so. I've been running a JLT catch can before they were selling 'plug and play' in my V-6 Mustang

 

Who are "some people?" And what in the intake needs lubrication?

 

You can find and read most anything on the web these days. It's up to people to continue to research and make their own opinion. For me, the proof is in the can: oil that I prefer to keep out of the intake and throttle body.