Black residue in Fuel on tank bottom.

[mmssvv]

(02-16-2017 )snailexpress Wrote:  

(02-16-2017 )preacherboy24 Wrote:  could be aspaltiene. I am currently running treatment for it right now. It was clogging my filters.

I don't know exactly nature of this crap, there is too many opinions all over in internet about diesel fuel. What I know for sure my truck fuel system was full of this after fuel from south states. AL, MS, GA, FL. It was so much the ball valve on intake side of water separator got stack open. It looks like black piece of sponge. Waiting for warmer weather to go thru fuel system. Best treatment was the one Rawze posted on old forum. Probably need to use it more often.

Davco valve checked,absolutely clean.Hmm, interesting.Maybe this come with the load of fuel, who knows.