Black Fuel Filter

[Rawze]

(09-20-2017 )HalpinUout Wrote:  I have a 2014 587 with Cummins ISX... The filter below has only 10k miles on it. I'm hearing everything from Injector Rings must be leaking, Algae, Need overhaul, bad fuel... Any ideas? I don't believe it's Algae, my tanks don't appear to have any and it's not slimy... Planning on taking the truck to Cummins soon...

For a 10 micron filter, it looks like its doing its job and is pretty normal to me.

Everybody I know who uses a 7 or 10 micron filter, it turns black,... this is because ITS DOING IT JOB and catching the ashpaltine buildup that cummins is notorious for making in the fuel rail.