I just changed the fuel filter for the first time at 14k miles. There were two small puddles of dark water in the bottom of the bowl and the filter paper was black, though not slimy. Every time I've opened the drain, I've never seen any water come out. The truck is running perfectly. Does this sound normal or do I have a problem with water and bacteria/ algee ?
07 5.9 4wd lwb qc g56

 

My first filter change at 15K the filter was black. Now I change it every 10 to 12,000 miles. The filters have been coming out pretty clean since the first change. I also only drain the bowl when I'm changing the filter, no problems in 47,000 miles. I wouldn't worry about it.

Mike

 

Just a little dirt.Make sure every time you change the filter that you clean the bowl out.If you ever have an injector issue the dealer looks there first and any dirt there you are paying for repairs not the manf.

 

I change my fuel fikter with every oil change, 5000 miles. Can't hurt. Wipe the canister with Lint free cloth...

 

Thanks for the replies. What about the two small puddles of water?
Thanks,Ted