General Fit Talk General Discussion on the Honda Fit/Jazz.

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Old Jan 13, 2026 | 04:13 PM
  #1  
mjjones's Avatar
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From: Canada
Help and thoughts

My oil dirtier than expected at 60% life left and I’m getting a lot of air through my oil fill hole
any thoughts
 
Old Jan 13, 2026 | 05:51 PM
  #2  
Drew21's Avatar
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Originally Posted by mjjones
My oil dirtier than expected at 60% life left and I’m getting a lot of air through my oil fill hole
any thoughts
How many miles and how long since your last oil change?

The oil percentage isn't some magical or detailed analysis of your oil condition. It's just a simple/dumb algorithm tracking a few metrics -- engine RPMs, engine temp, ambient temp, and time -- to guesstimate remaining oil life. It knows nothing about the actual condition of your oil, or even if there's any oil in the engine at all.

If you think the oil looks dirty, you should change it regardless of what the oil percentage is. Better yet, if you're really concerned you can get an oil analysis run to tell you the true condition of your oil.

As for "a lot of air through my oil fill hole," do you mean that you have pressure in the crankcase when the engine is running? That's a good sign that your PCV (positive crankcase ventilation) valve is plugged or otherwise stuck.

Note that these issues may be linked: a stuck PCV valve isn't great for your oil or engine.
 
Old Jan 13, 2026 | 09:58 PM
  #3  
mjjones's Avatar
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From: Canada
Help and thoughts

It’s 2017 with 62 k. and I did change my oil twice a year weather it says to or not
i suspected the pvc valve also I thought I might be missing something
thanks
 
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