Oil catch cans are they needed?
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I would say yes, you need it on the passenger side for sure. I installed mine at about 500 miles and when I did my first oil change at 1200 miles there was already some oil collected in the can. I drove another 1500 miles and 1 track day since then and there was a decent amount in there once again. I have a driver's side separator installed as well but that's been bone dry since the day I installed it. I'm happy I have it just in case, but the driver's side probably isn't too important unless you're going to be pushing the car to it's absolute limits at the track.
At least get the passenger side though. It'll catch oil even in regular street driving.
At least get the passenger side though. It'll catch oil even in regular street driving.
I'm looking at adding this easy mod on my car. from what I understand an oil separator on passenger side is sufficient? Was thinking of going for the Ford Performance one (I like the fact that it's engineered to fit for our cars). Any better options I should know about? Thanks all! I'm new to the Mustang/Shelby world!
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Ordering both of the JLT ones today in Black. They look like the best option
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Tex, I too went with the JLT for the passenger side as although I like the look of the Ford Performance unit better, from what I can tell you have to remove 3 bolts to drain whereas the JLT you simply unscrew the canister and dump...
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Yes that is the difference. The JLT just unscrews rather easily.
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Very true, I was speaking with JLT recently and they did tell me that. Even though they have requested that their resellers not ship to CA they can't really control it. They are working hard on getting the CARB certification, as CARB is asking what the fail safe would be if an owner forget to empty the canister? Not sure that any damage would be done or not, anyone know how Ford Performance addressed this eventuality with CARB?
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Bob, my thoughts as well...except if the canister was full it might suck liquid oil into the intake? Not sure if the oil could make it through the catch can filters or not...would like to know how For Performance addressed this...
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I have a Ford can on the passenger side and on it the crankcase inlet is lower than the outlet that connects to the engine air intake so if it fills up the overflow would just run back into the valve cover. On the JTL (on the drivers side of mine) both hoses are at the same level so as you said it's likely the engine will gulp oil through the intake manifold. Likely there would be periodic or maybe steady blue exhaust smoke. I know now I'll definitely be checking the JTL can more frequently from now on.
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Is the purpose of those cans to keep us from having to clean oil residue out of the intake? If this is a critical problem, wouldn't there be a simple black plastic can installed from the factory and the owner's manual would say empty it at every oil change?
I am seeking knowledge here, not commenting on those who have installed them.
I am seeking knowledge here, not commenting on those who have installed them.
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144 Posts
Yes, it is to keep the oil mist from entering the intake system. I believe the passenger side outlet dumps into the intake manifold after the throttle body and the drivers side dumps into the air intake just before (or maybe just after) the throttle body. Once the inside of the intake is coated with oil cleaning it would be big $$$.
As to why Ford didn't put the on in the factory I'm speculating that it might have to do with meeting emission requirements but someone more knowledgable than me may have better insight into this.
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Yes you need them, why? Crankcase ventilation (PCV) contains engine oil vapor. The crankcase is vented into the intake manifold to burn along with air/fuel charge. While driving, especially spirited driving, oil is drawn into the intake and oil can start deposits on hot valves and pistons. These deposits are bad and limit engine power and efficiency.
The JLT are the easiest, but are not Cal Emission Certified. This means that places like California can make you remove them (if they even knew what they were...). Fords product is certified, but a little more trouble (3 screws...) at oil change time. Both banks vent, so both banks should get a can. A smart add.
The JLT are the easiest, but are not Cal Emission Certified. This means that places like California can make you remove them (if they even knew what they were...). Fords product is certified, but a little more trouble (3 screws...) at oil change time. Both banks vent, so both banks should get a can. A smart add.
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Many old cars had only the dipstick tube and oil fill tube to vent pressure. Some incorporated vents in the valve covers.
What if the JLT can simply had a filter element instead of attaching to the intake? That way, the crankcase is passively vented and zero oil vapor is introduced into the intake.
If I remember correctly, Positive Crankcase Ventilation was born out of lowering emissions, rather than to boost performance.
I am in Florida, and we don't have annual car inspections so maintaining emissions compliance is more of a moral question than a legal one.
What if the JLT can simply had a filter element instead of attaching to the intake? That way, the crankcase is passively vented and zero oil vapor is introduced into the intake.
If I remember correctly, Positive Crankcase Ventilation was born out of lowering emissions, rather than to boost performance.
I am in Florida, and we don't have annual car inspections so maintaining emissions compliance is more of a moral question than a legal one.
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