Oil Catch Can

Piets94 · 11-17-2013, 06:02 AM

Recently fitted the BMS OCC. Have done a quick search, and the general consensus (and BMS' recommendation) is to empty the can about every 3-6 months. As with oil change frequency, this must depend on usage.

For those using a catch can, how often are you emptying the can and after approx. how may kms/miles? If you are tracking the car, would you check to empty it sooner than 3 months, or not really necessary? Are there basic rules to OCC maintenance apart from regular checking/emptying?

Thanks

LuuZ · 11-17-2013, 11:57 AM

Thanks for asking as I ordered one too, will get it soon....

MDORPHN · 11-17-2013, 12:38 PM

I empty mine every 3 track events or so (when it generally has maybe 3 tablespoons). I find it doesn't accumulate much oil in street driving.

Neil

ESC OFF · 11-17-2013, 12:39 PM

Quote:

Originally Posted by Piets94

Recently fitted the BMS OCC. Have done a quick search, and the general consensus (and BMS' recommendation) is to empty the can about every 3-6 months. As with oil change frequency, this must depend on usage.

For those using a catch can, how often are you emptying the can and after approx. how may kms/miles? If you are tracking the car, would you check to empty it sooner than 3 months, or not really necessary? Are there basic rules to OCC maintenance apart from regular checking/emptying?

Thanks

I empty mine after 2000 miles, it typically has about 1/4" of oil, no track time. EDIT, just emptied mine yesterday 11/18 after about 2,200 miles of use, this time I measured 1/8" of oil which is probably more accurate than the 1/4" stated earlier.

Eyeman · 11-17-2013, 03:28 PM

Yep, takes a very long with street driving, even with tuned cars. Of course mine probably takes longer because I have a Riss Racing one which leaks and does not have any baffles to help catch stuff.

m3dragon · 11-18-2013, 02:49 PM

Quote:

Originally Posted by MDORPHN

I empty mine every 3 track events or so (when it generally has maybe 3 tablespoons). I find it doesn't accumulate much oil in street driving.

I had hardly any oil after 6 months of street driving and long road trips.

bdaddylo · 11-18-2013, 04:25 PM

You should be fine with every 7,500 miles or 12,000 km.

robertm · 11-19-2013, 09:36 AM

Very motor specific. Check at least every oil change and more often if tracking a lot. You will get it figured out after a few times and know what works for you.

marc@x-ph.com · 11-19-2013, 10:38 AM

It not only depends on your driving style but also on your car in general. PCV systems are not all equal. My car had only coating after 6 months and I drive it hard.
Eventually I took it off.

11-17-2013, 06:02 AM	#1
Piets94 Lieutenant 677 Rep 547 Posts Drives: 94 M3, AW 1M, M2 CS Join Date: Jun 2013 Location: Australia iTrader: (0)	Oil Catch Can Recently fitted the BMS OCC. Have done a quick search, and the general consensus (and BMS' recommendation) is to empty the can about every 3-6 months. As with oil change frequency, this must depend on usage. For those using a catch can, how often are you emptying the can and after approx. how may kms/miles? If you are tracking the car, would you check to empty it sooner than 3 months, or not really necessary? Are there basic rules to OCC maintenance apart from regular checking/emptying? Thanks
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11-17-2013, 11:57 AM	#2
LuuZ Second Lieutenant 75 Rep 294 Posts Drives: BMW 1M Join Date: Aug 2011 Location: Belgium iTrader: (0)	Thanks for asking as I ordered one too, will get it soon.... __________________ Spa-Francorchamps : The Beauty Nürburgring Nordschleife : The Myth
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11-17-2013, 12:38 PM	#3
MDORPHN Colonel 291 Rep 2,898 Posts Drives: AW 1M Join Date: Oct 2010 Location: Wash, DC iTrader: (0)	I empty mine every 3 track events or so (when it generally has maybe 3 tablespoons). I find it doesn't accumulate much oil in street driving. Neil
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11-17-2013, 03:28 PM	#5
Eyeman Colonel 121 Rep 2,037 Posts Drives: 2008 135 blk, blk, step Join Date: Jan 2009 Location: Atlanta, GA iTrader: (0) Garage List 1994 Porsche 968 Cab [0.00] 2017 AMG GTS [0.00] 1994 Porsche 968 Coupe [0.00] 1977 Mercedes 450SE ... [0.00] 2008 135 [8.00]	Yep, takes a very long with street driving, even with tuned cars. Of course mine probably takes longer because I have a Riss Racing one which leaks and does not have any baffles to help catch stuff. __________________ Injen, RR OCC, MadDad Whisper, donut spare, 19x8.5et43fr 19x9.5et45r Volk LE37's, rear fenders rolled/pulled, PSS4S 225/35fr 255/30r, KW V1's, AR coated catless dps, Cross strutbar, CF grills and license plate holder, iCarbon diffuser, ETS black anodized FMIC, M3 control arms, Quaife, ER chargepipe, ForgeDV's, Topspeed Custom Tune, V3sims, Braille, Andrey_GTA rear hub mod, Ebay Mstyle front bumper and performance style side skirts.
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11-18-2013, 04:25 PM	#7
bdaddylo Major 168 Rep 1,479 Posts Drives: 2017 F80 M3 Join Date: Dec 2010 Location: Houston, TX iTrader: (3) Garage List 2011 BMW E90 M3 [10.00] 2005 Acura MDX [0.00] 2011 BMW 1 Series M ... [10.00]	You should be fine with every 7,500 miles or 12,000 km. __________________ _______________________ 1991 E30 M3/Brilliantrot 2017 F80 M3/AW
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11-19-2013, 09:36 AM	#8
robertm Major 450 Rep 1,358 Posts Drives: 2020 M2 Comp Join Date: Oct 2007 Location: dfw iTrader: (0)	Very motor specific. Check at least every oil change and more often if tracking a lot. You will get it figured out after a few times and know what works for you.
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11-19-2013, 10:38 AM	#9
marc@x-ph.com Captain 15 Rep 678 Posts Drives: 2010 e92 335i Join Date: Sep 2013 Location: USA iTrader: (0)	It not only depends on your driving style but also on your car in general. PCV systems are not all equal. My car had only coating after 6 months and I drive it hard. Eventually I took it off.
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