I can absolutely attest to oil blow by coming into the turbo from the passenger side from that inlet. In fact the reason I found this thread is from seeing small amounts of oil/gunk coating the passenger side coupler directly down wind from that inlet(but nothing visible in the turbo) initially i started to get concerned that my turbo seal may be going, except i also did my LDP at the same time and saw no signs of failure there, and i also noticed that it wasn't oil oil... as it was kind of sticky, and sort of dry.... so i started looking into how/why i had residue there.. and lo and behold i find this thread
Is the passenger side CCV hose on the 3.0T sending oil blow-by into the turbo?
I revisit this topic from Jan or Feb but today while checking my intake install hardware and fittings I just thought I'll look at this again to see if anything had changed after more time and more high boost driving. Check the results out for yourself.
Note: If you buy a catch can from a manufacturer with this added configuration because it will be your 1st OCC purchase then all is good. I would not pay more money for a three-port catch can but again up to you. If you already have an oil catch can setup and you feel like you need repurchase or upgrade with an additional catch can or a newer specifically designed 3 port catch can that includes the passenger side CCV then watch this video.
Note: If you buy a catch can from a manufacturer with this added configuration because it will be your 1st OCC purchase then all is good. I would not pay more money for a three-port catch can but again up to you. If you already have an oil catch can setup and you feel like you need repurchase or upgrade with an additional catch can or a newer specifically designed 3 port catch can that includes the passenger side CCV then watch this video.
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If people are seeing oil in their passenger side coupler then there might be bigger concerns. A question to ask is, has/when was a proper, single oil catch used/installed for an extended time or the life of your vehicle? If you put one on later after xxxx so many miles of use, or bought preowned like so many others at 30K, 40K, 50K then installed, likely or suspect that the driver's side PCV/CCV emissions has or could have become clogged or restricted and therefor the passenger side CCV could have taken on double duty. Also, if an oil catch gets filled up, no more room from not being attended to, then blowby can then escape through the path of least resistance and start going out the passenger side breather I assume.I can absolutely attest to oil blow by coming into the turbo from the passenger side from that inlet. In fact the reason I found this thread is from seeing small amounts of oil/gunk coating the passenger side coupler directly down wind from that inlet(but nothing visible in the turbo) initially i started to get concerned that my turbo seal may be going, except i also did my LDP at the same time and saw no signs of failure there, and i also noticed that it wasn't oil oil... as it was kind of sticky, and sort of dry.... so i started looking into how/why i had residue there.. and lo and behold i find this thread
Note: Infiniti did know what they were doing when they designed what they did here, just like not equipping these cars with blowoff valves even though early YouTubers (2017-2019 ) and unilteligent people with these VR30 claimed/screamed that Infiniti engineers didn't know what they were doing. In this situation, Infiniti only put the driver's side emissions line up into the intake port because that's what was needed. I'd speculate people seeing larger amounts of gunk in passenger side coupler might have a deeper issue. Also, by your pictures, that residue is not substantial enough to be of any real concern. If you look under your entire engine bay you will see some gunk, grime and residue all around the entire area. This is pretty norm. The hole in the passenger side intake tubing coupler, pre-turbo does offer a path directly into the engine's internals so for there not to be any whatsoever sign of some residue would'nt be unusual.
The point is, when everything is functioning as intended from the factory, and not drastically changed/altered from how the factory built it, crankcase blowby vapor from the engine 98-99+% escapes through what Infiniti implemented or else they would have taken steps to run the passenger vent hose and rerouted it into the cylinder's intake port just like the driver's side. No need to buy an additional $200 oil catch can system or go adding more hoses, plus adding the so-called one-way check valves and or more stuff which alters the emissions breather system and therefore can cause more problems down the road.
Its not at all a bigger concern, and is totally normal part of this motors operation. Quite literally see this in nearly all examples where this motor is driven hard. Its why add w1 came out with the 3.3If people are seeing oil in their passenger side coupler then there might be bigger concerns. A question to ask is, has/when was a proper, single oil catch used/installed for an extended time or the life of your vehicle? If you put one on later after xxxx so many miles of use, or bought preowned like so many others at 30K, 40K, 50K then installed, likely or suspect that the driver's side PCV/CCV emissions has or could have become clogged or restricted and therefor the passenger side CCV could have taken on double duty. Also, if an oil catch gets filled up, no more room from not being attended to, then blowby can then escape through the path of least resistance and start going out the passenger side breather I assume.
Note: Infiniti did know what they were doing when they designed what they did here, just like not equipping these cars with blowoff valves even though early YouTubers (2017-2019 ) and unilteligent people with these VR30 claimed/screamed that Infiniti engineers didn't know what they were doing. In this situation, Infiniti only put the driver's side emissions line up into the intake port because that's what was needed. I'd speculate people seeing larger amounts of gunk in passenger side coupler might have a deeper issue. Also, by your pictures, that residue is not substantial enough to be of any real concern. If you look under your entire engine bay you will see some gunk, grime and residue all around the entire area. This is pretty norm. The hole in the passenger side intake tubing coupler, pre-turbo does offer a path directly into the engine's internals so for there not to be any whatsoever sign of some residue would'nt be unusual.
The point is, when everything is functioning as intended from the factory, and not drastically changed/altered from how the factory built it, crankcase blowby vapor from the engine 98-99+% escapes through what Infiniti implemented or else they would have taken steps to run the passenger vent hose and rerouted it into the cylinder's intake port just like the driver's side. No need to buy an additional $200 oil catch can system or go adding more hoses, plus adding the so-called one-way check valves and or more stuff which alters the emissions breather system and therefore can cause more problems down the road.
So what you see in my photos is 29k miles worth, so it seems very little is spit out from time to time. It's also pretty sticky and not fresh oil... I installed a mishimoto around 22k miles
Try posting your image again. It isn't showing up in your post (or is just me?).
Is you... shows up for meTry posting your image again. It isn't showing up in your post (or is just me?).
Something was FUBAR. I couldn't see it now. Reposted.Try posting your image again. It isn't showing up in your post (or is just me?).
Very strange as I could see it on my endSomething was FUBAR. I couldn't see it now. Reposted.
Thank you for reposting that image. I can see it now.Something was FUBAR. I couldn't see it now. Reposted.
What page and section is that in the service manual so I can mark that for reference?
Also, if I'm interpreting the image correctly both oil separators are on the driver's side. This interests me, because I've been getting lingering combustion/fuel smelling fumes at times coming from that side of the engine and I've been wondering if it were associated with the separators and/or the vent line hose connections.....
LOL! That's the 2.0L engine diagram. Total brain fart. No wonder it didn't look right. I'm surprised no one else caught that.Thank you for reposting that image. I can see it now.
What page and section is that in the service manual so I can mark that for reference?
Also, if I'm interpreting the image correctly both oil separators are on the driver's side. This interests me, because I've been getting lingering combustion/fuel smelling fumes at times coming from that side of the engine and I've been wondering if it were associated with the separators and/or the vent line hose connections.....
There are no oil separators on the VR30. My bad.
Well that explains why I never found these oil separators in the service manual. I remembered seeing them in the 2.0T sections but could never find them in the 3.0T sections. Thanks for checking.LOL! That's the 2.0L engine diagram. Total brain fart. No wonder it didn't look right. I'm surprised no one else caught that.
There are no oil separators on the VR30. My bad.
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