Oil Catch can still worth it at ~84K miles?

[Peter B]

Long time no post...

Just wondering if an oil catch can is still worth it? I have some 84K on my 2008.5 MS3, 90% of which is highway. I'm wondering if it's worth the $200 investment or if it's already damage done. I have taken good care of my MS3 so far. Mobil 1 or Penzoil Platinum 5W-30 ever 5k miles. 91 or 93 Octane fuel each fill. I have seafoamed it twice, probably due for another sometime soon. As I understand it, synthetic oil and high octane fuel help keep sludge out of your engine. Or am I wrong on that? So after 80k miles is it worth adding a catch can? The one that caught my eye was the one by Sure Motorsports. Any other suggestions?

Thanks for the advise,

Pete

 

[thuzil]

The catch can is fine any time. Just keeps vaporized oil from getting sucked into your intake system.

 

[speed3 britz]

I would suggest pulling the Intake manifold and doing an Intake valve cleaning and EGR delete as well. All things to keep it clean. Also Rotella T6 is a full synthetic 5w-40 oil that most of the Mazdaspeed community uses and helps with smoking issue common to our cars.