Oil Catch Can

[ZebRuaj]

Wow, that's an absurd amount of water. That would help explain why the oil cap always has a milkshake on the bottom of it even though I don't burn coolant or anything like that. I always just assumed it was because the neck was so long. I have a can on-hand now but have been waiting to install it because the holes on mine were drilled and tapped too deep. Now that I know that it fills that fast, I'm not sure I want to install it either. Where do you live that has that high of humidity, if you don't mind me asking?

Wasn't humidity for me, was MN winters and condensation.

 

[teenee51]

The primary purpose of the "catch can" is to prevent intake valve deposit buildup. This is most frequently a problem with direct injection (post intake valve) engines. The 4th & 5th generation 1GR-FE (and others) have a "sequential fuel injection system" that injects prior to the intake valves. Gasoline is a great solvent. Unless someone can prove there is a intake valve deposit issue with these engines, it seems that a catch can are more prone to problems (frozen condensation for one) then being a solution. Also, if there was a crankcase vent issue, why does my PCV valve and throttle body have almost no deposits after 90K?

 

[toyoman25]

Yes they do work...after 5k miles....why is there so much blow by?

 

[toyoman25]

Yes they do work...after 5k miles....why is there so much blow by?

5k miles

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