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      11-17-2013, 07:02 AM   #1
Piets94
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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, 12:57 PM   #2
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Thanks for asking as I ordered one too, will get it soon....
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      11-17-2013, 01:38 PM   #3
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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.

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      11-17-2013, 01:39 PM   #4
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Quote:
Originally Posted by Piets94 View Post
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.
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      11-17-2013, 04:28 PM   #5
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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.
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      11-18-2013, 03:49 PM   #6
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Quote:
Originally Posted by MDORPHN View Post
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.
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      11-18-2013, 05:25 PM   #7
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You should be fine with every 7,500 miles or 12,000 km.
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      11-19-2013, 10:36 AM   #8
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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, 11:38 AM   #9
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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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