Fuel/water separator filter turning black
09-05-2020, (Subject: Fuel/water separator filter turning black ) 
Post: #6
RE: Fuel/water separator filter turning black
I have paccar water separator on my truck. Both fleet guard and paccar branded filter turns black. Have a fuel restriction gauge and it doesn't make it to 5 before I change the filter at 15000 miles.

I figure it's normal for the filter to turn dark work use.


User's Signature: 2015 Kenworth T660
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RE: Fuel/water separator filter turning black - Mattman - 09-05-2020



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