How does an oil catch can work and why is it beneficial?

RedlineMotorworks · 07-28-2010, 03:07 PM

This question comes up very often so we decided to write up an article that hopefully answers every question regarding catch cans and why they are beneficial.

We tried to write it as simple as possible so anyone can understand it.

https://www.redline-motorworks.com/kb_results.asp?ID=8

If you feel we have missed something or if you have any questions, please post them in this thread and they will be addressed!

Thanks guys!

jb's335 · 07-28-2010, 03:31 PM

Good article!

2kaccordocoupe · 07-28-2010, 03:47 PM

Quote:

Originally Posted by jb's335

Good article!

+1

RedlineMotorworks · 07-28-2010, 04:24 PM

Quote:

Originally Posted by jb's335

Good article!

Quote:

Originally Posted by 2kaccordocoupe

+1

Thanks guys!

thwgw24 · 07-28-2010, 04:29 PM

Thanks for sharing.

mechanixhorseman · 07-28-2010, 08:02 PM

My BSH can has probably caught 1-3 ounces of oil after about 3000 miles of driving. Doesn't sound like much, but it definitely adds up when you start putting the miles on.

Daya · 07-28-2010, 08:24 PM

good read, I am getting my OCC installed next week!

mechanixhorseman · 07-28-2010, 08:53 PM

Quote:

Originally Posted by Daya

good read, I am getting my OCC installed next week!

Not sure if you were saying you were having someone else do it, but it is definitely an easy DIY. I wouldn't waste the money having someone else do it.

2 3pair · 07-28-2010, 08:57 PM

Where do I get one of these? How much do they run? How hard are they to install?

RedlineMotorworks · 07-28-2010, 09:52 PM

Quote:

Originally Posted by 2 3pair

Where do I get one of these? How much do they run? How hard are they to install?

PM sent.

Glad you guys enjoy the article.

RedlineMotorworks · 10-19-2010, 10:46 PM

Bump for an informative article!

If you wish to see an additions made or if something isn't clear, let us know.

AlterZgo · 10-19-2010, 10:52 PM

Just curious... if there is a significant benefit to having an oil catch can, are there any auto mfgs who have these as OEM items in their vehicles? If not, why not? I would assume cars like the Bugatti Veyron, where cost is not a concern, would incorporate stuff like this into their expensive 16 cylinder quad turbo motors.

Are there any downsides to installing oil catch cans?

Thanks.

RedlineMotorworks · 10-19-2010, 11:05 PM

Quote:

Originally Posted by AlterZgo

Just curious... if there is a significant benefit to having an oil catch can, are there any auto mfgs who have these as OEM items in their vehicles? If not, why not? I would assume cars like the Bugatti Veyron, where cost is not a concern, would incorporate stuff like this into their expensive 16 cylinder quad turbo motors.

Are there any downsides to installing oil catch cans?

Thanks.

In the article, it mentions why these aren't offered as an OEM part. There are no downsides except for the fact that you have to check it every now and then and empty the contents.

Quote:

Another question that arises is why isn't a catch can included from the factory? Well it's pretty simple actually. Most people don't even change their oil (scary but true) so will they think to empty the catch can regularly? The answer is obviously and unfortunately, no.

AlterZgo · 10-19-2010, 11:11 PM

Thanks. I thought it may be maintenance related. That said, I still wonder why higher end mfgs like Ferrari, Aston Martin, etc. wouldn't incorporate them into their vehicles. No one in their right mind would ignore maintenance requirements on $200K+ cars. Plus 99.9% of their customers probably have their cars professionally serviced anyway and emptying the catch can would be very basic to add to the service regimen.

Not being argumentative, just curious. Appreciate the info.

mycoupe · 10-19-2010, 11:55 PM

Why is everyone making catch cans?!?! Is there anyone out there making a true recirculation can for our cars? Why make an inferior product that makes us check it all the time when the recirc cans do it for you?

taylor99ss · 10-20-2010, 09:07 AM

Excellent article. I love to mod, but this is preventative maintenance something everyone should do. So glad I ordered mine last week, cant wait to get it installed. thx!

v300 · 10-20-2010, 09:48 AM

When you mentioned recirculation, were you talking about return oil back into the motor and capping a breather filter on the intake side? I was thinking about just capping the engine head PCV and installing a K&N breather filter on the intake side before installing the catch can.

Quote:

Originally Posted by mycoupe

Why is everyone making catch cans?!?! Is there anyone out there making a true recirculation can for our cars? Why make an inferior product that makes us check it all the time when the recirc cans do it for you?

vasillalov · 10-20-2010, 09:52 AM

Quote:

Originally Posted by mycoupe

Why is everyone making catch cans?!?! Is there anyone out there making a true recirculation can for our cars? Why make an inferior product that makes us check it all the time when the recirc cans do it for you?

Welcome to couple of months ago:

http://www.e90post.com/forums/showthread.php?t=420291

RedBaron335i · 09-18-2012, 09:58 PM

Great article. I had no idea! i thought the oil was blowing past the turbos???

EJ_3 · 09-19-2012, 08:27 AM

Good stuff, I would see this AFTER I sold mines..

JamesM3M5 · 09-19-2012, 09:00 AM

I thought I read several seasoned N54 owners getting rid of their catch cans because they caused more oil consumption? The only one I've seen recommended is BMS. But a properly functioning PCV system is step 1.

longliven54 · 09-19-2012, 10:00 AM

Quote:

Originally Posted by Manny_World

Good stuff, I would see this AFTER I sold mines..

lol

07-28-2010, 03:07 PM	#1
RedlineMotorworks Banned 189 Rep 2,502 Posts Drives: 6.2L F-150 Raptor Join Date: Sep 2007 Location: Redline Motorworks iTrader: (19)	How does an oil catch can work and why is it beneficial? This question comes up very often so we decided to write up an article that hopefully answers every question regarding catch cans and why they are beneficial. We tried to write it as simple as possible so anyone can understand it. https://www.redline-motorworks.com/kb_results.asp?ID=8 If you feel we have missed something or if you have any questions, please post them in this thread and they will be addressed! Thanks guys!
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07-28-2010, 03:31 PM	#2
jb's335 Big Boost Addict 52 Rep 689 Posts Drives: AW e92 335 Join Date: Aug 2008 Location: Lima, OH iTrader: (12)	Good article! __________________ FFTEC 62mm...yeah I think that about does it.
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07-28-2010, 04:29 PM	#5
thwgw24 Major 60 Rep 1,065 Posts Drives: RB PWRED E90 N54 6MT Join Date: Aug 2006 Location: Bellevue, WA iTrader: (19) Garage List 07' E90 335i [0.00]	Thanks for sharing. __________________ RB Turbo/Procede V5/Vishnu PWM Meth Injection Kit/Vishnu DCI/AR Catless DP/AE Performance Exhaust(Sold)/Helix FMIC/Forge DVs/Rixster Vent Boost Gauge/Wavetrac LSD/KW V3/ACT Street Clutch Kit
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07-28-2010, 08:02 PM	#6
mechanixhorseman Second Lieutenant 18 Rep 261 Posts Drives: 2007 335i Coupe Join Date: Jan 2010 Location: North County San Diego, CA iTrader: (0)	My BSH can has probably caught 1-3 ounces of oil after about 3000 miles of driving. Doesn't sound like much, but it definitely adds up when you start putting the miles on. __________________ ///2007 335i Coupe Space Metal Gray///Sports///Premium///6AT///Piano Black Forgestar 18" F14 8.5" front 10" rear///JB3///Cooling Mist CMGS Methanol Kit///aFe DCI///Stett Chargepipe///Tial BOV///BSH Oil Catch Can
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07-28-2010, 08:24 PM	#7
Daya Lieutenant Colonel 200 Rep 1,741 Posts Drives: e92 335 space gray/coral red Join Date: Sep 2006 Location: Chicago iTrader: (1) Garage List 2007 E92 335 [9.66]	good read, I am getting my OCC installed next week! __________________ GIAC S2 \| Brembo GT BBK 355/345 \| BBS CH-R \| Michelin Pilot Super Sports \| AR Design: DP, S1 Oil Cooler, OCC \| AMS FMIC \| Bastuck Quad Exhaust \| Borla MP \| KW V1 \| Stett: CAI, CP \| Forge DV \| P3 Boost Gauge \| Arkym: Front Lip, Rear Quad Diffuser \| Vorsteiner CSL Trunk \| LUX H8 \| ModMyNav \| MFD M3 Sideskirts \| BMW M-Tech Front/Rear Bumpers, Edition Grills
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07-28-2010, 08:57 PM	#9
2 3pair Second Lieutenant 4 Rep 284 Posts Drives: as often as possible Join Date: Jun 2010 Location: Memphis iTrader: (2)	Where do I get one of these? How much do they run? How hard are they to install? __________________
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10-19-2010, 10:46 PM	#11
RedlineMotorworks Banned 189 Rep 2,502 Posts Drives: 6.2L F-150 Raptor Join Date: Sep 2007 Location: Redline Motorworks iTrader: (19)	Bump for an informative article! If you wish to see an additions made or if something isn't clear, let us know.
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10-19-2010, 10:52 PM	#12
AlterZgo Lieutenant Colonel 1538 Rep 1,665 Posts Drives: 23 X3 M40i, 21 911S, 24 Taycan Join Date: Sep 2010 Location: Gilbert, AZ iTrader: (0)	Just curious... if there is a significant benefit to having an oil catch can, are there any auto mfgs who have these as OEM items in their vehicles? If not, why not? I would assume cars like the Bugatti Veyron, where cost is not a concern, would incorporate stuff like this into their expensive 16 cylinder quad turbo motors. Are there any downsides to installing oil catch cans? Thanks.
	Appreciate 0 Quote

10-19-2010, 11:11 PM	#14
AlterZgo Lieutenant Colonel 1538 Rep 1,665 Posts Drives: 23 X3 M40i, 21 911S, 24 Taycan Join Date: Sep 2010 Location: Gilbert, AZ iTrader: (0)	Thanks. I thought it may be maintenance related. That said, I still wonder why higher end mfgs like Ferrari, Aston Martin, etc. wouldn't incorporate them into their vehicles. No one in their right mind would ignore maintenance requirements on $200K+ cars. Plus 99.9% of their customers probably have their cars professionally serviced anyway and emptying the catch can would be very basic to add to the service regimen. Not being argumentative, just curious. Appreciate the info.
	Appreciate 0 Quote

10-19-2010, 11:55 PM	#15
mycoupe Banned 55 Rep 1,495 Posts Drives: 07 335i coupe 6spd Join Date: Dec 2009 Location: cincinnati, Ohio iTrader: (5)	Why is everyone making catch cans?!?! Is there anyone out there making a true recirculation can for our cars? Why make an inferior product that makes us check it all the time when the recirc cans do it for you?
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10-20-2010, 09:07 AM	#16
taylor99ss Private 8 Rep 66 Posts Drives: 2009 335i E92 Join Date: May 2010 Location: Dallas, TX iTrader: (0)	Excellent article. I love to mod, but this is preventative maintenance something everyone should do. So glad I ordered mine last week, cant wait to get it installed. thx!
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09-18-2012, 09:58 PM	#19
RedBaron335i Registered 0 Rep 2 Posts Drives: 2009 BMW 335i Sedan Join Date: Sep 2012 Location: Portland Oregon iTrader: (0)	Great article. I had no idea! i thought the oil was blowing past the turbos???
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09-19-2012, 08:27 AM	#20
EJ_3 Colonel 371 Rep 2,839 Posts Drives: e92 335i, e34 525i & e60 530i Join Date: Aug 2011 Location: N Las Vegas iTrader: (13) Garage List 2007 BMW 335i [8.34] 2016 Ram 1500 Sport [8.00] 1994 BMW 525i [10.00] 2007 BMW 530i [8.66]	Good stuff, I would see this AFTER I sold mines.. __________________ click here for mods
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09-19-2012, 09:00 AM	#21
JamesM3M5 Some dude 91 Rep 1,780 Posts Drives: E92 335i Join Date: Sep 2011 Location: Northern VA iTrader: (0)	I thought I read several seasoned N54 owners getting rid of their catch cans because they caused more oil consumption? The only one I've seen recommended is BMS. But a properly functioning PCV system is step 1. __________________ RRT E92 335i/6MT with stuff and things
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