2016 Mazda CX-5 GT AWD w/Tech Pkg
- Plano, Texas, USA
felixd’s first video had a lot of oil dripping out from intake manifold when he took it out and cleaned the valve carbon deposit. This video the valve looked a lot better, and the oil was a lot less in the manifold. He put the catch can, I believe, mainly because he saw so much oil the first time he took the manifold out. Chris_Top_Her can tell you how much oil he got in his catch can if he saw the discussion here.hmm, then I'm watched the wrong videos. I saw felilxd videos. From his valve cleaning video at about 28km to this catch can disassembly video at 41km (13km or ~ 8k miles), he observes *some* oil, but unless I missed where he drained the intake manifold and measured, it would appear to be fractions of an ounce coating the intake manifold. Did Felix quantify it further? Otherwise, I too am waiting for felix to post results from his catch can use. If it captures a *significant* amount of oil, I'll wait until after 60k miles to consider a catch can, so as not to risk drivetrain warranty.
We also don't know whether his (our) PCV valve condition contributes to the oil consumption. You might/should have to clean it or replace at regular intervals, which requires an intake manifold removal anyway.
Something else to consider; manual valve cleaning was really quite simple to do at about 30k miles. There was minor carbon buildup at that point, and I'm glad to repeat that procedure every 30k ~ 50k miles or so, especially if a capture can is only moderately effective.