Jump to content
Ultimate Subaru Message Board

PCV System Questions


Recommended Posts

I just picked up a really well maintained Lexus RX300 with the standard issue 3.0L

Toyota engine. I've been reading a lot and see that these engines have been prone to sludging issues (or gelling as some call it). Apparently it has to do with an inadequate PCV system design: http://www.toyoland.com/sludge.html

 

While mine hasn't exhibited any of the symptoms (yet) I was wondering if there's any proactive measures one could take to minimize the risk. I understand running full synthetic virtually eliminates the risk but my concern is if the engine has some sludge in it won't going to full synthetic with its high detergent properties possibly loosen the sludge and block oil passages, oil pickup tube, etc? On my older, normally aspirated engines I used to run a qurt of kerosene thru it for a 15 minute parked idle prior to changing oil and filter to "clean" the inside of the engine. I hesitate to do that with newer engines though.

 

Do you think one solution would be to run a valve cover breather filter in lieu of the oil fill cap? What effect (good or bad) could that have? Would it screw up any electronically monitored signals (MAP, etc)?

 

Thanks for any thoughts.

user_offline.gifquote.gif

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...