Oil Catch Can? - Mazda CX3 Forum
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post #1 of 16 Old 06-12-2019, 11:53 PM Thread Starter
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Oil Catch Can?

So I've been reading and watching a bunch on the skyactive engines, and found out that it's a GDI engine ( direct injection ) so fuel does not spray over the valves causing the carbon build up on them. One of the solutions I found to slow down the carbon build up is an oil catch can. Does anyone have any opinions on that?

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post #2 of 16 Old 06-13-2019, 12:08 AM
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Originally Posted by Donramon8 View Post
So I've been reading and watching a bunch on the skyactive engines, and found out that it's a GDI engine ( direct injection ) so fuel does not spray over the valves causing the carbon build up on them. One of the solutions I found to slow down the carbon build up is an oil catch can. Does anyone have any opinions on that?
Oil Catch Can ??
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post #3 of 16 Old 06-13-2019, 02:17 AM
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Oil Catch Can ??
Yes. This was quite a popular mod on the early DI engines (Particularly turbo DI), like Mazda's DISI for example. However, I haven't seen too many people install them on skyactiv engines.

You can search the ND Miata forums, as I recall lots of discussion about this with the general conclusion being that it really is not necessary to install.

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post #4 of 16 Old 06-13-2019, 03:56 AM Thread Starter
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Thx I'll check them out, I keep reading all over that direct injection engines are flawed with canon build up over the valves, which will eventually lead to problems.

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post #5 of 16 Old 06-13-2019, 10:41 AM
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The CX3 has one factory fitted.
Attached Files
File Type: pdf Emission system.pdf (585.5 KB, 72 views)

Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. ©2018 anchorman

ď.........and another thing"

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post #6 of 16 Old 06-13-2019, 02:17 PM Thread Starter
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The CX3 has one factory fitted.
Really? Where is it

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post #7 of 16 Old 06-13-2019, 02:23 PM
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The CX3 has one factory fitted.
Given that a catch can hopefully actually 'catches' something, do you know where this expells its waste? Or is it something that a shop should be checking every oil change or something to clean out. I remember in my old genesis coupe the catch can I installed would get disgusting with oily gunk but it was better than it being recirculated into the intake and pooling on the turbo inlet. This is the first time ive seen anything factory related of the sort so Im curious and now worried about how this gets handled.

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post #8 of 16 Old 06-13-2019, 02:33 PM Thread Starter
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The CX3 has one factory fitted.
The attached image not working

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post #9 of 16 Old 06-15-2019, 03:46 AM
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The catch tank is just a container with a wire gauze in it. As the vapours pass through, they collect on the wire and then drip to the bottom where they are returned to the crankcase. The attachment is a pdf. It opens for me but here is a screen dump.


Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. ©2018 anchorman

ď.........and another thing"

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post #10 of 16 Old 06-15-2019, 04:04 AM
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Quote:
Originally Posted by SlyCoopers View Post
Given that a catch can hopefully actually 'catches' something, do you know where this expells its waste? Or is it something that a shop should be checking every oil change or something to clean out. I remember in my old genesis coupe the catch can I installed would get disgusting with oily gunk but it was better than it being recirculated into the intake and pooling on the turbo inlet. This is the first time ive seen anything factory related of the sort so Im curious and now worried about how this gets handled.
Donít worry, it self purges. There is an inspection process attached but that is only for fault finding. Itís why these modern engine oil changes are critical. Hang on, here is the equivalent of what your accessory catch can is! I knew Iíd got it somewhere.


Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. ©2018 anchorman

ď.........and another thing"
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